CN115677999A - Polycarbonate and preparation method and application thereof - Google Patents

Abstract

The embodiment of the present application relates to a polycarbonate and its preparation method and application. The polycarbonate of the present application comprises a carbonate group, and the dihydroxy compound forming the carbonate group includes a dihydroxy compound in which two hydroxyl-containing substituted or unsubstituted aryl groups are connected by M, and the M is connected to a divalent X ₃ and other two substituted or unsubstituted aryl groups form a ring structure, and the two hydroxyl-containing substituted or unsubstituted aryl groups are not connected to each other except for the M or are connected to each other via X ₄ .

Description

Polycarbonate and its preparation method and application

technical field

The embodiments of the present application relate to the technical field of optical materials, in particular to a polycarbonate and its preparation method and application.

Background technique

Various terminal consumer electronic products such as tablet computers, notebook computers, digital cameras, mobile phones, wearable electronic devices, virtual reality devices, etc. need to be equipped with optical products with excellent optical performance in multiple application scenarios, such as camera lens materials, mobile phone Retardant material in displays, etc. High refraction polycarbonate (Polycarbonate, PC) optical resin is widely used in the preparation of various optical products due to the advantages of light weight, impact resistance, high transparency, and easy processing and molding.

On the one hand, current mainstream camera module manufacturers usually require polycarbonate materials with a high refractive index (even higher than 1.63). However, the higher the refractive index of polycarbonate materials generally means the more severe the dispersion, so the above-mentioned high refractive index polycarbonate materials tend to have lower Abbe numbers. In addition, the refractive index is traditionally increased by increasing the number of aromatic rings in the polycarbonate material, but this leads to residual stress in the material during the injection molding process, and stress birefringence occurs, and ghosting is prone to occur during the imaging process. Optical properties of optical articles made of carbonates.

Therefore, there is still room for improvement in achieving high refractive index, low dispersion, and low birefringence at the same time.

In addition, in the processing and use environment of polycarbonate materials, it is usually necessary to withstand high heat, such as processing heat and heat generated near the light source. Therefore, in order to ensure the performance stability of the polycarbonate material, it is often also required that the polycarbonate material has excellent heat resistance.

Contents of the invention

In view of this, a kind of polycarbonate is proposed, and described polycarbonate can take into account high refractive index (for example can reach more than 1.56, even reach more than 1.63), low dispersion (for example can reach more than 17, even can reach 19 Above), high heat resistance and low birefringence (for example, when the thickness is 1mm, it can reach below 50nm under d light).

Also proposed a kind of preparation method of polycarbonate, described preparation method can obtain the polycarbonate that can take into account high refractive index, low dispersion, high heat resistance and low birefringence easily, process is simple, Ease of mass production.

Also proposed is a resin composition, which can take into account high refractive index, low dispersion, high heat resistance and low birefringence, and has a wide range of uses, for example, it can be used to prepare the above-mentioned The various molded articles described above require at least one of the properties.

Also proposed is an optical article that can balance high refractive index, low dispersion, high heat resistance, and low birefringence, and a device including the same.

In the first aspect, the embodiments of the present application provide a polycarbonate, the polycarbonate comprises a carbonate group, and the dihydroxy compound forming the carbonate group includes two hydroxyl-containing substituted or unsubstituted A dihydroxy compound in which the aryl group is linked by M, which forms a ring structure with a divalent X and two other substituted or unsubstituted aryl groups, _the two hydroxyl-containing substituted or unsubstituted aryl groups except are not connected to each other other than M or are connected to each other via _X4 ;

M represents a carbon atom, a silicon atom, a germanium atom or a tin atom;

_X3 represents an oxy group, a thio group, a disulfide group, a sulfoxide group, a sulfone group, a substituted or unsubstituted imino group, a substituted or unsubstituted silylene group with 1 to 3 silicon atoms, a substituted or unsubstituted Phosphorous groups, substituted or unsubstituted linear or branched alkylene groups with 1 to 10 carbon atoms, substituted or unsubstituted cycloalkylene groups with 3 to 10 carbon atoms, or carbonyl ;

_X4 represents a direct bond, oxygen, sulfur, disulfide, sulfoxide, sulfone, substituted or unsubstituted imino, substituted or unsubstituted silane with 1 to 3 silicon atoms, substituted or unsubstituted A substituted phosphorous group, a substituted or unsubstituted linear or branched alkylene group having 1 to 10 carbon atoms, or a substituted or unsubstituted cycloalkylene group having 3 to 10 carbon atoms.

In this case, the polycarbonate of the present application can achieve both high refractive index, low dispersion, high heat resistance and low birefringence. Specifically, in the present application, the presence of each aromatic ring structure can increase the refractive index of polycarbonate, and at the same time, connecting the aromatic ring structure by _X3 and M as a bridging group can not only help to improve the refractive index of the material, but also It relieves the internal stress birefringence of the material while effectively reducing the dispersion (increasing the Abbe number of the polymer).

According to the first aspect, in the first possible implementation manner of the polycarbonate, the ring structure is a 6-10-membered ring.

In this case, the polycarbonate of the present application can better balance high refractive index, low dispersion, high heat resistance and low birefringence.

According to the first aspect, in the first or second possible implementation of the polycarbonate, the polycarbonate includes a structural unit selected from the structural unit represented by formula (I) and the structural unit represented by formula (II) At least one structural unit in:

In formula (I) and formula (II),

X ₁ and X ₂ each independently represent a substituted or unsubstituted linear or branched alkylene group having 1 to 8 carbon atoms;

X ₃ , X ₄ , and M are each the same as above;

R ₁ and R ₂ each independently represent hydrogen, halogen, alkyl, aryl, alkoxy, aryloxy, hydroxyl, ester, cyano, amino, thiol, or atoms that can replace the above groups or atomic group;

R ₃ to R ₈ each independently represent hydrogen, halogen, alkyl, aryl, alkoxy, aryloxy, hydroxyl, ester, cyano, amino, thiol, or atoms that can replace the above groups or Atomic groups, and at least two adjacent substituents in R ₃ to R ₈ can be connected to each other to form a ring structure;

a and b are each independently selected from an integer of 0 to 5;

p1 and p2 are each independently selected from an integer of 1 to 3;

m ₁ and m ₂ are each independently selected from an integer of 1-4.

In this case, the polycarbonate of the present application can better balance high refractive index, low dispersion, high heat resistance and low birefringence. Specifically, in the present application, in the structural units shown in formula (I) and formula (II), the presence of aromatic ring structure can better improve the refractive index of polycarbonate, and at the same time, _X3 and M are used as bridges The connection of the aromatic ring structure by the group can not only improve the refractive index of the material, but also relieve the internal stress birefringence of the material, and effectively reduce the dispersion (increase the Abbe number of the polymer).

According to the first aspect, in any one of the first to three possible implementations of the polycarbonate, _X represents oxygen, sulfur, disulfide, sulfoxide, sulfone, substituted or unsubstituted imino groups with 1 to 10 carbon atoms, substituted or unsubstituted silylene groups with 1 to 16 carbon atoms and 1 to 3 silicon atoms, substituted or unsubstituted silane groups with 1 to 10 carbon atoms A phosphorous group, an unsubstituted straight-chain or branched-chain alkylene group having 1 to 6 carbon atoms, or a carbonyl group.

In this case, the polycarbonate of the present application can achieve both higher refractive index, lower dispersion, high heat resistance, and lower birefringence, and can be obtained more easily.

According to the first aspect, in the third or four possible implementations of the polycarbonate, relative to the total molar weight of all repeating units of the polycarbonate, the selected from the group represented by formula (I) The content of at least one structural unit among the structural unit and the structural unit represented by formula (II) is 10 mol % or more.

In this case, the polycarbonate of the present application can take into account higher refractive index, lower dispersion, high heat resistance and lower birefringence.

According to the first aspect, in the fifth possible implementation of the polycarbonate, relative to the total molar weight of all repeating units of the polycarbonate, the structural unit selected from formula (I) The content of at least one structural unit among the structural units represented by formula (II) is 80 mol % or less.

In this case, the polycarbonate of the present application can furthermore have a low cost.

According to the first aspect, in any one of the first to sixth possible implementations of the polycarbonate, the polycarbonate further includes a structural unit selected from formula (III), formula (IV) At least one structural unit in the structural unit shown in the formula (V):

In formula (III), formula (IV) and formula (V),

X ₁ , X ₂ , a, b are each the same as in formula (I) and formula (II);

Y represents oxygen, sulfur, sulfoxide group, sulfone group, substituted or unsubstituted linear or branched alkylene group with 1 to 20 carbon atoms, substituted or unsubstituted carbon atom with 3 to 20 Cycloalkylene, substituted or unsubstituted fluorenylene, substituted or unsubstituted arylene with 6 to 30 carbon atoms, or substituted or unsubstituted heteroarylene with 2 to 30 carbon atoms;

R ₉ , R ₁₀ , and R ₁₁ each independently represent hydrogen, a hydroxyl group, a substituted or unsubstituted straight-chain or branched alkyl group having 1 to 6 carbon atoms, or a substituted or unsubstituted carbon atom having 3 Cycloalkyl to 10, substituted or unsubstituted linear or branched alkenyl with 2 to 6 carbon atoms, substituted or unsubstituted linear or branched chain with 1 to 6 carbon atoms -like alkoxy, substituted or unsubstituted aryl with 6 to 30 carbon atoms, substituted or unsubstituted heteroaryl with 2 to 30 carbon atoms;

R ₁₂ represents a substituted or unsubstituted linear or branched alkylene group with 1 to 15 carbon atoms, a substituted or unsubstituted cycloalkylene group with 3 to 15 carbon atoms, or a substituted or unsubstituted A substituted straight-chain or branched-chain etherylene group with 1 to 10 carbon atoms;

Z ₁ and Z ₂ each independently represent oxygen, sulfur, or a direct bond;

m ₃ , m ₄ , and m ₅ are each independently selected from an integer of 1-2.

In this case, the polycarbonate of the present application can balance high refractive index, low dispersion, high heat resistance and lower birefringence in a more balanced manner, and has low cost.

According to the first aspect, in the seventh possible implementation of the polycarbonate, relative to the total molar weight of all repeating units of the polycarbonate, the structural unit selected from formula (I) and the content of at least one structural unit in the structural units shown in formula (II) is 30 to 60 mole %, and the structural unit shown in formula (III), the structural unit shown in formula (IV), The content of at least one structural unit among the structural units represented by formula (V) is 40 to 85 mol%.

In this case, the polycarbonate of the present application can take into account higher refractive index, lower dispersion, high heat resistance and lower birefringence in a more balanced manner, and has low cost.

According to the first aspect, in any one of the first to eight possible implementation modes of the polycarbonate, the polycarbonate has a weight average molecular weight of 10,000 g/mol to 200,000 g/mol.

In this case, the polycarbonate of the present application has higher heat resistance, mechanical properties and has excellent processability.

According to the first aspect, in any one of the first to ninth possible implementations of the polycarbonate, the polycarbonate has a refractive index greater than 1.56.

In this case, the polycarbonates of the present application have a further increased refractive index.

According to the first aspect, in any one of the first to ten possible implementations of the polycarbonate, the Abbe number of the polycarbonate is 17 or more.

In this case, the polycarbonates of the present application have further reduced dispersion properties.

According to the first aspect, in any one possible implementation manner of the first to eleven types of polycarbonate, the glass transition temperature of the polycarbonate is above 135°C.

In this case, the polycarbonates of the present application have a further increased heat resistance.

According to the first aspect, in any one of the first to twelve possible implementations of the polycarbonate, the polycarbonate has a birefringence of 50 nm or less under d light when the thickness is 1 mm.

In this case, the polycarbonates of the present application have a further reduced birefringence.

Second aspect, the embodiment of the present application provides a kind of preparation method of polycarbonate, it comprises: make dihydroxy compound and carbonic diester compound carry out transesterification polycondensation under the effect of catalyst so as to obtain polycarbonate,

The dihydroxy compound includes two hydroxyl-containing substituted or unsubstituted aryl groups connected by M, and the M forms a ring structure with a divalent _X and two other substituted or unsubstituted aryl groups , the two hydroxyl-containing substituted or unsubstituted aryl groups are not connected to each other except the M or are connected to each other via X ₄ ;

M represents a carbon atom, a silicon atom, a germanium atom or a tin atom;

_X3 represents an oxy group, a thio group, a disulfide group, a sulfoxide group, a sulfone group, a substituted or unsubstituted imino group, a substituted or unsubstituted silylene group with 1 to 3 silicon atoms, a substituted or unsubstituted Phosphorous groups, substituted or unsubstituted linear or branched alkylene groups with 1 to 10 carbon atoms, substituted or unsubstituted cycloalkylene groups with 3 to 10 carbon atoms, or carbonyl ;

_X4 represents a direct bond, oxygen, sulfur, disulfide, sulfoxide, sulfone, substituted or unsubstituted imino, substituted or unsubstituted silane with 1 to 3 silicon atoms, substituted or unsubstituted A substituted phosphorous group, a substituted or unsubstituted linear or branched alkylene group having 1 to 10 carbon atoms, or a substituted or unsubstituted cycloalkylene group having 3 to 10 carbon atoms.

In this case, the preparation method of the present application can easily obtain polycarbonate that can take into account high refractive index, low dispersion, high heat resistance and low birefringence, and the process is simple and convenient for large-scale production.

According to the second aspect, in the first possible implementation manner of the preparation method, the ring structure is a 6-10-membered ring.

In this case, the polycarbonate of the present application can better balance high refractive index, low dispersion, high heat resistance and low birefringence.

According to the second aspect, in the first or second possible implementation of the preparation method, it includes: making the dihydroxy compound selected from the dihydroxy compound represented by the formula (1) and the dihydroxy compound represented by the formula (2) At least one dihydroxy compound and carbonic acid diester compound are subjected to transesterification polycondensation under the action of a catalyst to obtain polycarbonate:

In formula (1) and formula (2),

X ₁ and X ₂ each independently represent a substituted or unsubstituted linear or branched alkylene group having 1 to 8 carbon atoms;

X ₃ , X ₄ , and M are each the same as above;

R ₁ and R ₂ each independently represent hydrogen, halogen, alkyl, aryl, alkoxy, aryloxy, hydroxyl, ester, cyano, amino, thiol, or atoms that can replace the above groups or atomic group;

R ₃ to R ₈ each independently represent hydrogen, halogen, alkyl, aryl, alkoxy, aryloxy, hydroxyl, ester, cyano, amino, thiol, or atoms that can replace the above groups or Atomic groups, and at least two adjacent substituents in R ₃ to R ₈ can be connected to each other to form a ring structure;

a and b are each independently selected from an integer of 0 to 5;

p1 and p2 are each independently selected from an integer of 1 to 3;

m ₁ and m ₂ are each independently selected from an integer of 1-4.

In this case, the polycarbonate of the present application can better balance high refractive index, low dispersion, high heat resistance and low birefringence.

According to the second aspect, in any one of the first to third possible implementations of the preparation method, the preparation method includes: further making a dihydroxy compound selected from the formula (3), the formula (4 ) shown in the dihydroxy compound, at least one dihydroxy compound in the dihydroxy compound shown in formula (5) and the carbonic acid diester compound carry out transesterification polycondensation:

In formula (3), formula (4) and formula (5),

X ₁ , X ₂ , a, b are each the same as in formula (1) and formula (2);

Y represents oxygen, sulfur, sulfoxide group, sulfone group, substituted or unsubstituted linear or branched alkylene group with 1 to 20 carbon atoms, substituted or unsubstituted carbon atom with 3 to 20 Cycloalkylene, substituted or unsubstituted fluorenylene, substituted or unsubstituted arylene with 6 to 30 carbon atoms, or substituted or unsubstituted heteroarylene with 2 to 30 carbon atoms;

R ₉ , R ₁₀ , and R ₁₁ each independently represent hydrogen, a hydroxyl group, a substituted or unsubstituted straight-chain or branched alkyl group having 1 to 6 carbon atoms, or a substituted or unsubstituted carbon atom having 3 Cycloalkyl to 10, substituted or unsubstituted linear or branched alkenyl with 2 to 6 carbon atoms, substituted or unsubstituted linear or branched chain with 1 to 6 carbon atoms -like alkoxy, substituted or unsubstituted aryl with 6 to 30 carbon atoms, substituted or unsubstituted heteroaryl with 2 to 30 carbon atoms;

R ₁₂ represents a substituted or unsubstituted linear or branched alkylene group with 1 to 15 carbon atoms, a substituted or unsubstituted cycloalkylene group with 3 to 15 carbon atoms, or a substituted or unsubstituted A substituted straight-chain or branched-chain etherylene group with 1 to 10 carbon atoms;

Z ₁ and Z ₂ each independently represent oxygen, sulfur, or a direct bond;

m ₃ , m ₄ , and m ₅ are each independently selected from an integer of 1-2.

In this case, the preparation method of the present application can obtain polycarbonate with high refractive index, low dispersion, high heat resistance and low birefringence in a more balanced manner at a lower cost.

According to the second aspect, in any one of the first to fourth possible implementations of the preparation method, the carbonic acid diester compound is selected from diphenyl carbonate, xylyl carbonate, bis(chlorine carbonate) At least one of phenyl) ester, dimethyl carbonate, diethyl carbonate, dibutyl carbonate and dicyclohexyl carbonate.

In this case, the preparation method of the present application can be carried out more smoothly.

According to the second aspect, in any one possible implementation of the first to fifth of the preparation method, the catalyst is an alkaline substance or an ionic liquid catalyst.

In this case, the preparation method of the present application can be performed more efficiently.

According to a second aspect, in any one possible implementation of the first to sixth of the preparation method, the transesterification polycondensation is transesterification melt polycondensation.

In this case, the preparation method of the present application can more easily prepare the desired polycarbonate, has high environmental friendliness, and is more convenient for large-scale production.

According to the second aspect, in any one of the first to seventh possible implementations of the preparation method, relative to 1 mole of the total amount of all dihydroxy compounds, the amount of the carbonic diester compound used is 0.97 to 1.2 Moore.

In this case, the preparation method of the present application can have high environmental friendliness while ensuring easy preparation of the desired polycarbonate, and the production cost is lower.

In the third aspect, the embodiment of the present application provides a resin composition, which is characterized in that the resin composition includes polycarbonate according to any one of the first to thirteen possible implementations of the first aspect Or the polycarbonate prepared according to the preparation method of any one of the first to eight possible implementations of the first aspect.

In this case, the resin composition of the present application can take into account high refractive index, low dispersion, high heat resistance and low birefringence, and has a wide range of applications, for example, it can be used to prepare At least one of the above-mentioned various molded articles is required.

In the fourth aspect, the embodiments of the present application provide an optical product, the optical product includes polycarbonate according to any one of the possible implementations of the first to thirteenth aspects of the first aspect or the polycarbonate according to the first aspect The polycarbonate prepared by the preparation method of any one of the first to eight possible implementation modes.

In this case, the optical article of the present application can take into account high refractive index, low dispersion, high heat resistance and low birefringence.

According to the fourth aspect, in the first possible implementation manner of the optical product, the optical product includes an optical lens, an optical film, an optical disc, a light guide plate or a display panel.

In this case, the optical product of the present application can better exhibit excellent optical performance.

According to the fourth aspect, in the second possible implementation manner of the optical product, the optical lens includes a spectacle lens, a camera lens, a sensor lens, an illumination lens, and an imaging lens.

In this case, the optical lens of the present application can better exhibit excellent optical performance.

In a fifth aspect, an embodiment of the present application provides a device, the device including an optical product according to any one of the first to third possible implementations of the first aspect.

In this case, the optical products installed in the device of the present application can take into account high refractive index, low dispersion, high heat resistance and low birefringence, so that the device has excellent optical performance.

According to the fifth aspect, in the first possible implementation of the device, the device includes a device body and a camera module assembled on the device body, the camera module includes lens lens.

In this case, the lens lens of the camera module installed in the device of the present application can take into account high refractive index, low dispersion, high heat resistance and low birefringence, so that the camera module has excellent imaging performance.

Detailed ways

Various exemplary embodiments, features, and aspects of the present application are described in detail below. The word "exemplary" as used herein means "serving as an example, embodiment, or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as superior or better than other embodiments.

In addition, in order to better illustrate the present application, numerous specific details are given in the following specific implementation manners. It will be understood by those skilled in the art that this application may be practiced without certain of the specific details. In some instances, methods, means, components and circuits well known to those skilled in the art have not been described in detail in order to highlight the gist of the present application.

<first aspect>

In order to solve the above technical problems, the application provides a polycarbonate, the polycarbonate contains carbonate groups, the dihydroxy compound forming the carbonate groups includes two hydroxyl-containing substituted or unsubstituted aromatic A dihydroxy compound whose group is connected by M, said M forms a ring structure with a divalent X ₃ and two other substituted or unsubstituted aryl groups, and said two substituted or unsubstituted aryl groups containing hydroxyl group except the Other than the above M, they are not connected to each other or are connected to each other via _X4 ;

M represents a carbon atom, a silicon atom, a germanium atom or a tin atom;

_X3 represents an oxy group, a thio group, a disulfide group, a sulfoxide group, a sulfone group, a substituted or unsubstituted imino group, a substituted or unsubstituted silylene group with 1 to 3 silicon atoms, a substituted or unsubstituted Phosphorous groups, substituted or unsubstituted linear or branched alkylene groups with 1 to 10 carbon atoms, substituted or unsubstituted cycloalkylene groups with 3 to 10 carbon atoms, or carbonyl ;

_X4 represents a direct bond, oxygen, sulfur, disulfide, sulfoxide, sulfone, substituted or unsubstituted imino, substituted or unsubstituted silane with 1 to 3 silicon atoms, substituted or unsubstituted A substituted phosphorous group, a substituted or unsubstituted linear or branched alkylene group having 1 to 10 carbon atoms, or a substituted or unsubstituted cycloalkylene group having 3 to 10 carbon atoms.

In this case, the polycarbonate of the present application can achieve both high refractive index, low dispersion, high heat resistance and low birefringence. Specifically, in the present application, the presence of each aromatic ring structure can increase the refractive index of polycarbonate, and at the same time, connecting the aromatic ring structure by _X3 and M as a bridging group can not only help to improve the refractive index of the material, but also It relieves the internal stress birefringence of the material while effectively reducing the dispersion (increasing the Abbe number of the polymer).

In some preferred embodiments, the ring structure formed by M, X ₃ and two other substituted or unsubstituted aryl groups is a 6-10-membered ring.

In some preferred embodiments, the polycarbonate of the present application preferably includes at least one structural unit selected from the structural unit shown in formula (I) and the structural unit shown in formula (II):

In formula (I) and formula (II), X ₁ and X ₂ each independently represent a substituted or unsubstituted linear or branched alkylene group having 1 to 8 carbon atoms.

The substituents of the alkylene groups of X ₁ and X ₂ are not particularly limited. Examples include, but are not limited to: halogen groups such as fluorine, chlorine, bromine, etc.; aryl groups such as phenyl, naphthyl, etc.; such as methoxy, Alkoxy such as ethoxy; Aryloxy such as phenoxy and naphthyloxy; Alkenyl such as vinyl; Alkenyloxy such as vinyloxy; Hydroxyl; Mercapto; Cyano; Amino; Ester; Amide Base etc.

In some preferred embodiments, each of X ₁ and X ₂ independently preferably represents a substituted or unsubstituted linear or branched alkylene group having 1 to 5 carbon atoms. In some more preferred embodiments, from the viewpoint of improving the performance stability of the polymer, X ₁ and X ₂ each independently more preferably represent methylene, ethylene, n-propylene, isopropylene , n-butylene, sec-butylene.

In formula (I) and formula (II), _X represents oxygen, sulfur, disulfide group, sulfoxide group, sulfone group, substituted or unsubstituted imino group, substituted or unsubstituted silicon atom number is 1～3 Silylene group, substituted or unsubstituted phosphorous group, substituted or unsubstituted linear or branched alkylene group with 1 to 10 carbon atoms, substituted or unsubstituted carbon atoms with 3 to 10 cycloalkylene, or carbonyl.

In this application, the terms "imino", "silylene" and "phosphorous" are those known in the art, for example, "imino" can be represented by -(NQ) _n1- , wherein R is hydrogen or imino Alkyl group; "silylene group" can be represented by -(SiQ ₁ Q ₂ ) _n2- , wherein Q ₁ and Q ₂ are each independently hydrogen or alkylene group; "phosphorous group" can be represented by -(PQ ₃ Q ₄ Q ₅ ) _n3 - represents, wherein Q ₃ , Q ₄ and Q ₅ are each independently hydrogen or alkylene.

The substituents of imino, silylene, and phosphorous groups as _X3 are not particularly limited, including but not limited to: halogen groups such as fluorine, chlorine, and bromine; alkyl groups such as methyl, ethyl, and propyl ; such as phenyl, naphthyl and other aryl groups; such as methoxy, ethoxy and other alkoxy groups; such as phenoxy, naphthoxy and other aryloxy groups; such as vinyl and other alkenyl groups; such as vinyloxy and other alkenyl groups Oxygen; Hydroxy; Mercapto; Cyano, etc. As the substituent of the alkylene group (straight-chain, branched-chain, cyclic) of _X3 , there is no particular limitation, including but not limited to: halogen groups such as fluorine, chlorine, bromine; such as methoxy, ethoxy Alkoxy groups such as phenoxy, naphthyloxy and other aryloxy groups; alkenyl groups such as vinyl; alkenyloxy groups such as vinyloxy; hydroxyl group; mercapto group; cyano group; amino group; ester group; amido group, etc. .

In some preferred embodiments, from the point of view that polycarbonate can take into account higher refractive index, lower dispersion, high heat resistance and lower birefringence, and is easier to obtain, in this application _X3 preferably represents oxygen, sulfur, disulfide, sulfoxide, sulfone, substituted or unsubstituted imino groups with 1 to 10 carbon atoms, substituted or unsubstituted carbon atoms with 1 to 16 and Silylene group with 1 to 3 silicon atoms, substituted or unsubstituted phosphorous group with 1 to 10 carbon atoms, unsubstituted linear or branched alkylene group with 1 to 6 carbon atoms group, or carbonyl. In some more preferred embodiments, from the point of view of further obtaining the desired effect, _X3 more preferably represents oxygen, sulfur, sulfoxide, sulfone, methylene, ethylene, n-propylene, Isopropylidene. In some particularly preferred embodiments, _X3 particularly preferably represents sulfur, because the optical properties such as the refractive index of polycarbonate can be better improved, and at the same time, the flexibility brought by the sulfur atom reduces the internal stress of the material and eases The material should have internal birefringence, and at the same time, the dispersion can be adjusted to avoid serious dispersion problems in the material.

In formula (II), X ₄ represents a direct bond, oxygen, sulfur, disulfide, sulfoxide, sulfone, substituted or unsubstituted imino, substituted or unsubstituted silicon atoms with 1 to 3 sulfides Silyl groups, substituted or unsubstituted phosphorous groups, substituted or unsubstituted linear or branched alkylene groups with 1 to 10 carbon atoms, or substituted or unsubstituted carbon atoms with 3 to 10 of cycloalkylenes.

The substituents of imino, silylene, and phosphorous groups of _X are not particularly limited, including but not limited to: halogen groups such as fluorine, chlorine, and bromine; alkyl groups such as methyl, ethyl, and propyl ; Such as phenyl, naphthyl and other aryl groups; such as phenyl, naphthyl and other aryl groups; such as methoxy, ethoxy and other alkoxy groups; such as phenoxy, naphthyl and other aryl groups; such as vinyl Such as alkenyl; such as vinyloxy and other alkenyloxy; hydroxyl; mercapto; cyano, etc. As the substituent of the alkylene group (straight-chain, branched-chain, cyclic) of _X4 , there is no particular limitation, including but not limited to: halogen groups such as fluorine, chlorine, bromine; such as methoxy, ethoxy Alkoxy groups such as phenoxy, naphthyloxy and other aryloxy groups; alkenyl groups such as vinyl; alkenyloxy groups such as vinyloxy; hydroxyl group; mercapto group; cyano group; amino group; ester group; amido group, etc. .

In some preferred embodiments, X _preferably represents a direct bond, sulfur or oxygen, more preferably represents a direct bond or sulfur. When _X4 is a direct bond, the polymer has better optical properties, while mechanical and heat resistance properties can also be improved. When X ₄ is sulfur or oxygen (especially sulfur), the optical properties of the polymer can be further improved, a higher refractive index can be obtained, and a higher Abbe number can also be obtained.

In formula (I) and formula (II), M represents a carbon atom, a silicon atom, a germanium atom or a tin atom.

In some preferred embodiments, M preferably represents a carbon atom from the standpoint of easier availability.

In formula (I) and formula (II), R ₁ and R ₂ each independently represent hydrogen, halogen, alkyl, aryl, alkoxy, aryloxy, hydroxyl, ester, cyano, amino, thiol group, or an atom or atomic group that can replace the above group.

In some preferred embodiments, R ₁ and R ₂ each independently preferably represent hydrogen, methyl or phenyl, because, in this case, the mechanical properties of the material can be further adjusted, and the refractive index of the material can be further improved And/or further improve heat resistance.

In formula (I) and formula (II), R ₃ ~ R ₈ each independently represent hydrogen, halogen, alkyl, aryl, alkoxy, aryloxy, hydroxyl, ester, cyano, amino, thiol group, or an atom or an atomic group that can replace the above group, and at least two adjacent substituents among R ₃ to R ₈ can be connected to each other to form a ring structure.

In some preferred embodiments, each of R ₃ to R ₈ independently preferably represents hydrogen. In other preferred embodiments, R ₃ and R ₄ are connected to each other as a benzo group and/or R ₇ and R ₈ are connected to each other as a benzo group, because the introduction of fused rings can increase the refractive index of the material , while improving the heat resistance of the material.

In formula (I) and formula (II), a and b are each independently selected from an integer of 0-5. In some preferred embodiments, from the viewpoint of better realizing the performance stability of the polymer, a and b are preferably not 0 at the same time. In some more preferred embodiments, a and b are 1 or 2 independently.

In formula (I) and formula (II), p1 and p2 are each independently selected from an integer of 1-3, preferably 1 or 2.

In formula (I) and formula (II), m ₁ and m ₂ are each independently selected from an integer of 1-4, preferably 1 or 2.

In some specific embodiments, the polycarbonate of the present application preferably includes structural units selected from formulas (I-1) to (I-16), formulas (II-1) to (II-12) at least one structural unit.

In the present application, the content of at least one structural unit selected from the structural unit represented by formula (I) and the structural unit represented by formula (II) is not particularly limited, and can be appropriately adjusted according to actual needs.

In some preferred embodiments, from the point of view that polycarbonate can take into account higher refractive index, lower dispersion, high heat resistance and lower birefringence, relative to all repeating units of polycarbonate The total molar amount, the content of at least one structural unit selected from the structural unit shown in formula (I) and the structural unit shown in formula (II) is preferably 10 mole % or more, more preferably 20 mole % Above, more preferably 30 mol% or more, particularly preferably 40 mol% or more.

In some other preferred embodiments, from the point of view that polycarbonate can further have low cost while ensuring desired optical properties, relative to the total molar weight of all repeating units of the polycarbonate, selected from The content of at least one structural unit in the structural unit shown in formula (I) and the structural unit shown in formula (II) is 80 mole % or less, more preferably 75 mole % or less, more preferably 70 mole % or less, particularly preferably 65 mol% or less.

In the present application, the specific types of other structural units other than at least one structural unit selected from the structural units shown in the formula (I) and the structural units shown in the formula (II) that the polycarbonate can contain are not particularly specific. As a limitation, various structural units conventionally known in the art can be used.

In some preferred embodiments, from the point of view that the polycarbonate of the present application can balance high refractive index, low dispersion, high heat resistance and low birefringence, and has low cost, As other structural units, the polycarbonate of the present application also includes at least one structure selected from the structural unit shown in formula (III), the structural unit shown in formula (IV), and the structural unit shown in formula (V) unit:

In formula (III), Y preferably represents oxygen, sulfur, sulfoxide group, sulfone group, substituted or unsubstituted linear or branched alkylene group with 1 to 20 carbon atoms, substituted or unsubstituted Cycloalkylene groups with 3 to 20 carbon atoms, substituted or unsubstituted fluorenylene groups, substituted or unsubstituted arylene groups with 6 to 30 carbon atoms, or substituted or unsubstituted carbon atoms with 2 ~30 heteroarylenes.

As the substituent of the linear or branched alkylene and cycloalkylene groups of Y, there is no particular limitation. Examples include, but are not limited to: halogen groups such as fluorine, chlorine, bromine, etc.; such as methoxy, ethoxy Alkoxy groups such as phenoxy, naphthyloxy and other aryloxy groups; alkenyl groups such as vinyl; alkenyloxy groups such as vinyloxy; hydroxyl group; mercapto group; cyano group; amino group; ester group; amido group, etc. . As the substituent of Y's fluorenylene group, arylene group, and heteroarylene group, there is no particular limitation, and examples include but are not limited to: halogen groups such as fluorine, chlorine, bromine, etc.; such as methyl, ethyl, propyl, etc. Alkyl; aryl such as phenyl and naphthyl; alkoxy such as methoxy and ethoxy; aryloxy such as phenoxy and naphthyloxy; alkenyl such as vinyl; such as vinyloxy Such as alkenyloxy group; hydroxyl group; mercapto group; cyano group; amino group; ester group; amido group, etc. Here, the heteroatoms in "heteroarylene" include, but are not limited to, nitrogen, sulfur, oxygen, boron, and silicon.

In formula (III), R ₉ and R ₁₀ each independently preferably represent hydrogen, hydroxyl, substituted or unsubstituted linear or branched alkyl with 1 to 6 carbon atoms, substituted or unsubstituted Cycloalkyl with 3 to 10 carbon atoms, substituted or unsubstituted linear or branched alkenyl with 2 to 6 carbon atoms, substituted or unsubstituted straight chain with 1 to 6 carbon atoms A chain or branched alkoxy group, a substituted or unsubstituted aryl group having 6 to 30 carbon atoms, a substituted or unsubstituted heteroaryl group having 2 to 30 carbon atoms.

The substituents of the alkyl (straight chain, branched, cyclic), alkenyl, and alkoxy groups of R ₉ and R ₁₀ are not particularly limited, and examples include but are not limited to: halogens such as fluorine, chlorine, bromine, etc. Groups; alkoxy groups such as methoxy and ethoxy; aryloxy groups such as phenoxy and naphthoxy; alkenyl groups such as vinyl; alkenyloxy groups such as vinyloxy; hydroxyl; mercapto; cyano group; amino group; ester group; amido group, etc. Examples of substituents for the aryl and heteroaryl groups of R ₉ and R ₁₀ include, but are not limited to: halogen groups such as fluorine, chlorine, bromine, etc.; alkyl groups such as methyl, ethyl, propyl, etc.; such as phenyl , naphthyl and other aryl groups; such as methoxy, ethoxy and other alkoxy groups; such as phenoxy, naphthoxy and other aryloxy groups; such as vinyl and other alkenyl groups; such as vinyloxy and other alkenyl groups; hydroxyl ; Mercapto; Cyano; Amino; Ester; Amide, etc. Here, the heteroatoms in "heteroaryl" include nitrogen, sulfur, oxygen, boron, silicon.

In formula (III), m ₃ and m ₄ are each independently preferably an integer selected from 1-2.

In formula (IV), R ₁₁ each independently preferably represents hydrogen, a hydroxyl group, a substituted or unsubstituted straight-chain or branched alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted carbon atom number A cycloalkyl group of 3 to 10, a substituted or unsubstituted linear or branched alkenyl group with 2 to 6 carbon atoms, a substituted or unsubstituted linear or branched chain with 1 to 6 carbon atoms A branched alkoxy group, a substituted or unsubstituted aryl group having 6 to 30 carbon atoms, and a substituted or unsubstituted heteroaryl group having 2 to 30 carbon atoms.

The substituents of the alkyl (straight chain, branched, cyclic), alkenyl, and alkoxy groups as R ₁₁ are not particularly limited, and examples include but are not limited to: halogen groups such as fluorine, chlorine, bromine, etc.; Alkoxy groups such as methoxy and ethoxy; aryloxy groups such as phenoxy and naphthoxy; alkenyl groups such as vinyl; alkenyloxy groups such as vinyloxy; hydroxyl; mercapto; cyano; amino ; Ester group; Amide group, etc. As the substituent of R ₁₁ aryl, heteroaryl, examples include but not limited to: such as halogen groups such as fluorine, chlorine, bromine; such as methyl, ethyl, propyl and other alkyl groups; such as phenyl, naphthyl Aryl groups such as methoxy, ethoxy and other alkoxy groups; aryloxy groups such as phenoxy and naphthoxy groups; alkenyl groups such as vinyl groups; alkenyl groups such as vinyloxy groups; hydroxyl groups; mercapto groups; Cyano; Amino; Ester; Amide, etc. Here, the heteroatoms in "heteroaryl" include nitrogen, sulfur, oxygen, boron, silicon.

In formula (IV), m ₅ is each independently preferably an integer selected from 1-2.

In formula (V), R ₁₂ preferably represents a substituted or unsubstituted linear or branched alkylene group having 1 to 15 carbon atoms, a substituted or unsubstituted alkylene group having 3 to 15 carbon atoms A cycloalkyl group, or a substituted or unsubstituted straight-chain or branched etherylene group having 1 to 10 carbon atoms.

As the substituent of the alkylene (straight chain, branched, cyclic) and etherylene group of R ₁₂ , there is no particular limitation, examples include but not limited to: such as halogen groups such as fluorine, chlorine, bromine; such as methyl Alkoxy such as oxy and ethoxy; Aryloxy such as phenoxy and naphthoxy; Alkenyl such as vinyl; Alkenyloxy such as vinyloxy; Hydroxyl; Mercapto; Cyano; Amino; Esters group; amide group, etc.

In formula (V), Z ₁ and Z ₂ each independently represent oxygen, sulfur, or a direct bond.

In formula (III), formula (IV) and formula (V), each of X ₁ , X ₂ , a, and b is the same as in formula (I) and formula (II).

In this application, in some preferred embodiments, polycarbonate can balance higher refractive index, lower dispersion, high heat resistance and lower birefringence, and has low cost From the point of view, relative to the total molar weight of all repeating units of polycarbonate, the content of at least one structural unit selected from the structural unit shown in formula (I) and the structural unit shown in formula (II) 30-60 mole %, more preferably 35-65 mole %, the structural unit selected from the structural unit shown in formula (III), the structural unit shown in formula (IV) and the structural unit shown in formula (V) The content of at least one structural unit in is preferably 40-85 mol%, more preferably 35-65 mol%.

In the present application, in some preferred embodiments, the weight average molecular weight of the polycarbonate is preferably 10,000 g/mol˜200,000 g/mol, more preferably 20,000 g/mol˜100,000 g/mol. When the molecular weight is higher than the above range, the processing difficulty of the polycarbonate material increases; when the molecular weight is lower than the above range, heat resistance and mechanical properties tend to be impaired. The weight average molecular weight is measured based on gel permeation chromatography (GPC).

In this application, in some preferred embodiments, the polycarbonate preferably has a refractive index greater than 1.56. When the refractive index is greater than 1.56, the general expectation in the art for the refractive index can be better met. In some more preferred embodiments, the refractive index of the polycarbonate is more preferably 1.63 or more, further preferably 1.64-1.69. The refractive index of polycarbonate can be measured according to ASTM D542 test standard.

In this application, in some preferred embodiments, the Abbe number of the polycarbonate is preferably 17 or more. When the Abbe number is 17 or more, dispersion can be further reduced. In some more preferred embodiments, the Abbe number of the polycarbonate is more preferably 17-40, even more preferably 18-26.

In the present application, in some preferred embodiments, the glass transition temperature (Tg) of the polycarbonate is preferably above 135° C., so that the polycarbonate of the present application has further increased heat resistance. In some more preferred embodiments, the polycarbonate has a glass transition temperature (Tg) of 140-170°C, more preferably 140-155°C.

In this application, in some preferred embodiments, the birefringence of polycarbonate under d light (wavelength 589.3 nm) is preferably less than 50 nm, more preferably less than 40 nm when the thickness is 1 mm. The specific method of measuring the birefringence of polycarbonate is as described in the Examples of the present application.

In this application, in some preferred embodiments, the transmittance of the polycarbonate is preferably above 75%, more preferably above 80%, even more preferably above 85%. The transmittance of polycarbonate can be obtained by testing according to ASTM D1003 test standard.

In this application, in some preferred embodiments, the water absorption (24h) of polycarbonate is preferably 0.3% or less, more preferably 0.2% or less, further preferably 0.15 or less. The transmittance of polycarbonate can be obtained by testing according to ASTM D590 test standard.

<Second aspect>

The embodiment of the present application also provides a kind of preparation method of polycarbonate, and it comprises: make dihydroxy compound and carbonic acid diester compound carry out transesterification polycondensation under the effect of catalyst so as to obtain polycarbonate,

The dihydroxy compound includes two hydroxyl-containing substituted or unsubstituted aryl groups connected by M, and the M forms a ring structure with a divalent _X and two other substituted or unsubstituted aryl groups , the two hydroxyl-containing substituted or unsubstituted aryl groups are not connected to each other except the M or are connected to each other via X ₄ ;

M represents a carbon atom, a silicon atom, a germanium atom or a tin atom;

_X3 represents an oxy group, a thio group, a disulfide group, a sulfoxide group, a sulfone group, a substituted or unsubstituted imino group, a substituted or unsubstituted silylene group with 1 to 3 silicon atoms, a substituted or unsubstituted Phosphorous groups, substituted or unsubstituted linear or branched alkylene groups with 1 to 10 carbon atoms, substituted or unsubstituted cycloalkylene groups with 3 to 10 carbon atoms, or carbonyl ;

_X4 represents a direct bond, oxygen, sulfur, disulfide, sulfoxide, sulfone, substituted or unsubstituted imino, substituted or unsubstituted silane with 1 to 3 silicon atoms, substituted or unsubstituted A substituted phosphorous group, a substituted or unsubstituted linear or branched alkylene group having 1 to 10 carbon atoms, or a substituted or unsubstituted cycloalkylene group having 3 to 10 carbon atoms.

The preparation method of the present application can easily obtain polycarbonate that can take into account high refractive index, low dispersion, high heat resistance and low birefringence, and the process is simple and convenient for large-scale production.

In some preferred embodiments, the ring structure formed by M, X ₃ and two other substituted or unsubstituted aryl groups is a 6-10-membered ring.

In some preferred embodiments, the preparation method of the polycarbonate of the present application preferably comprises making at least one dihydroxy compound selected from the dihydroxy compound shown in formula (1) and the dihydroxy compound shown in formula (2) Hydroxyl compounds (hereinafter sometimes referred to as specific dihydroxy compounds) and carbonic acid diester compounds are subjected to transesterification and polycondensation under the action of a catalyst to obtain polycarbonate:

In formula (1) and formula (2), the details of each of X ₁ to X ₄ , M, R ₁ to R ₈ , a, b, p1, p2, m ₁ , and m ₂ are the same as in the above-mentioned <first aspect> The formula (I) and formula (II) are the same, therefore, repeat them here.

The preparation method of the present application can easily obtain polycarbonate that can take into account high refractive index, low dispersion, high heat resistance and low birefringence, and the process is simple and convenient for large-scale production.

In some specific embodiments, it is preferred to use at least one dihydroxy compound.

In addition, in the present application, there is no particular limitation on the usage ratio of the above-mentioned specific dihydroxy compound in all dihydroxy compounds.

In some preferred embodiments, relative to the total amount of all dihydroxy compounds, the amount of the above-mentioned specific dihydroxy compound is preferably more than 10 mol%, more preferably more than 20 mol%, further preferably 30 mol% or more, particularly preferably 40 mol % or more.

In other preferred embodiments, relative to the total amount of all dihydroxy compounds, the amount of the above-mentioned specific dihydroxy compound is preferably less than 80 mole%, more preferably less than 75 mole%, further preferably 70 mole % or less, particularly preferably 65 mol % or less.

In the present application, there is no particular limitation on the specific types of other dihydroxy compounds that can participate in polycondensation, and various dihydroxy compounds conventionally known in the art can be used.

In some preferred embodiments, it is preferred that the preparation method of the present application includes: further making the dihydroxy compound selected from the formula (3), the dihydroxy compound shown in the formula (4), the formula (5) At least one dihydroxy compound in the shown dihydroxy compound carries out transesterification polycondensation with carbonic acid diester compound:

In formula (3), formula (4) and formula (5), X ₁ , X ₂ , Y, Z ₁ , Z ₂ , R ₉ , R ₁₀ , R ₁₁ , R ₁₂ , a, b, m ₃ , m The details of ₄ and m ₅ are the same as those of formula (III), formula (IV) and formula (V) in the above-mentioned <first aspect>, and therefore, details are not repeated here.

In the present application, for all dihydroxy compounds, at least The ratio of the amount of a dihydroxy compound used is not particularly limited.

In some preferred embodiments, from the point of view that polycarbonate can balance higher refractive index, lower dispersion, high heat resistance and lower birefringence, and has low cost, Relative to the total amount of all dihydroxy compounds, the amount of the above-mentioned specific dihydroxy compound is preferably 30-60 mole%, more preferably 35-65 mole%, the above-mentioned selected from the formula (3) The amount of at least one dihydroxy compound in the dihydroxy compound, the dihydroxy compound shown in formula (4), and the dihydroxy compound shown in formula (5) is preferably 40 to 70 mol%, more preferably 35 to 65 mol%.

In the present application, the carbonic acid diester compound is not particularly limited, and may be various compounds known in the art. Examples include, but are not limited to: diaryl carbonates such as diphenyl carbonate, xylyl carbonate, bis(chlorophenyl) carbonate, etc.; such as dimethyl carbonate, diethyl carbonate, dipropyl carbonate, carbonic acid Dibutyl carbonate, dicyclofluorenyl carbonate and other dialkyl carbonates, dicyclohexyl carbonate and other dialkyl carbonates; such as methyl cresyl carbonate, ethyl cresyl carbonate, and other alkyl aryl esters Class; bicarbonate body of dihydroxy compound, monocarbonate body of dihydroxy compound, carbonate body of dihydroxy compound such as cyclic carbonate, etc. In some preferred embodiments, from the viewpoint that the preparation method of the present application can be carried out more smoothly, the carbonic acid diester compound is preferably selected from diphenyl carbonate, xylyl carbonate, bis(chlorophenyl) carbonate At least one of ester, dimethyl carbonate, diethyl carbonate, dibutyl carbonate and dicyclohexyl carbonate.

In the present application, the catalyst used in the polycondensation reaction is not particularly limited, and can be appropriately selected according to the specific monomer type and the like.

In some preferred embodiments, the catalyst is an alkaline substance or an ionic liquid catalyst. Examples of alkaline substances include but are not limited to: alkali metal compounds such as sodium hydroxide, potassium hydroxide, lithium hydroxide, sodium bicarbonate; alkaline earth metal compounds such as calcium carbonate and magnesium carbonate; trimethylamine, triethylamine, etc. Aliphatic tertiary amines; such as N,N'-dimethylcyclohexylamine, N,N'-diethylcyclohexylamine and other alicyclic tertiary amines; N,N'-dimethylaniline, N,N' - Aromatic tertiary amines such as diethylaniline; polyamines such as triethylenediamine; quaternary ammonium salts such as trimethylbenzyl ammonium chloride, tetramethylammonium chloride, and triethylbenzyl ammonium chloride; Pyridine; Guanine; Salt of guanidine, etc. Examples of ionic liquid catalysts include, but are not limited to: 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU), 1,5-diazabicyclo[4.3.0]nonan-5 -ene (DBN) and so on.

In some more preferred embodiments, the catalyst is preferably selected from triethylamine, tri-n-butylamine, N,N-dimethylaniline, triethylenediamine, triisopropylamine, tetrabutylammonium fluoride (TBAF), tetrabutylammonium chloride (TBAC), tetrabutylammonium bromide (TBAB), tetrabutylammonium iodide (TBAI), 1,8-diazabicyclo[5.4.0]undecane -7-ene (DBU), 1,5-diazabicyclo[4.3.0]non-5-ene (DBN), pyridine, sodium hydroxide, lithium hydroxide, cesium carbonate, potassium carbonate, potassium bicarbonate, At least one of sodium carbonate, lithium carbonate, calcium carbonate and magnesium carbonate.

In the present application, there is no particular limitation on the method of transesterification polycondensation, and various methods known in the art can be used, such as interfacial polycondensation, solution polycondensation, melt polycondensation and the like. In some preferred embodiments, the transesterification polycondensation is preferably performed by melt polycondensation.

In the present application, there are no special restrictions on the polymerization conditions of the melt polycondensation, which can be adjusted appropriately according to actual needs. In some specific embodiments, the polycondensation temperature is usually 100-320° C.; the polycondensation time is usually 10 minutes to 6 hours; the polycondensation pressure is usually reduced pressure or normal pressure. In other specific embodiments, the atmosphere of the polycondensation reaction is preferably an inert gas atmosphere, such as a nitrogen atmosphere, a helium atmosphere, and the like. In other specific embodiments, the melt polycondensation reaction can be carried out while removing by-products.

In the present application, in the melt polycondensation, all the carbonic acid diester compounds and all the dihydroxy compounds may be mixed together, or may be mixed by any method of a batch method or a continuous method. When performing batchwise, the order of mixing the components is arbitrary, and an appropriate order can be set arbitrarily.

In the present application, the melt polycondensation may be performed in a single stage or in stages.

In addition, in some specific embodiments, in the melt polycondensation, a catalyst deactivator can also be used as needed. As the catalyst deactivator, a compound that neutralizes the transesterification catalyst, for example, sulfur-containing acidic compounds and derivatives thereof, etc. can be used arbitrarily.

In the present application, there is no particular limitation on the feeding ratio of various dihydroxy compounds and carbonic acid diester compounds. In some preferred embodiments, from the viewpoint that the preparation method of the present application can ensure that the desired polycarbonate is easily prepared, it has high environmental friendliness, and the production cost is lower, relative to all dihydroxy compounds The total amount is 1 mole, and the amount of the carbonic acid diester compound is 0.97-1.2 moles.

<Third aspect>

The embodiment of the present application also provides a resin composition, including the above-mentioned polycarbonate of the present application, that is, the polycarbonate as described in <the first aspect> or the polycarbonate obtained by the production method as described in the <second aspect> ester.

In the present application, the resin composition may also optionally include additives. Examples of additives include but are not limited to: antioxidants, plasticizers, anti-aging agents, heat stabilizers, fillers, dyes, light stabilizers, ultraviolet absorbers agent, flame retardant, antistatic agent, release agent, antibacterial agent. These additives may be used alone or in any combination of two or more. The content of the added amount can be added in an appropriate amount as required.

In the present application, the resin composition may also optionally include other polymers, and other polymers may be other optical resins different from the embodiments of the present application, and other optical resins may specifically be other polycarbonate resins different from the embodiments of the present application. The ester can also be a non-polycarbonate optical resin, and the content of other optical resins can be added in an appropriate amount as required.

In the present application, in some specific embodiments, relative to the total mass of the resin composition, the content of the above-mentioned polycarbonate of the present application is preferably 60% by mass or more, more preferably 70% by mass or more, even more preferably 80% or more, particularly preferably 90% or more.

<Fourth aspect>

The embodiment of the present application also provides an optical product, which includes the above-mentioned polycarbonate of the present application, that is, the polycarbonate as described in <the first aspect> or obtained by the manufacturing method as described in the <second aspect> polycarbonate. In some specific embodiments, the optical article of the present application is preferably made of the above-mentioned resin composition of the present application. In other specific embodiments, the optical article of the present application is preferably only made of the above-mentioned resin composition of the present application.

The molding method of the optical article of the present application is not particularly limited, and the above-mentioned polycarbonate or the above-mentioned resin composition can be processed into an optical article by various known molding methods. The optical product can be partially processed by using the above-mentioned polycarbonate or resin composition, and can also be processed by using the above-mentioned polycarbonate or resin composition as a whole.

In the present application, examples of optical articles include, but are not limited to: optical lenses, optical films, optical discs, light guide plates, or display panels.

Specific examples of optical lenses include, without limitation, spectacle lenses, camera lenses, sensor lenses, lighting lenses, imaging lenses, and the like. Among them, specific examples of spectacle lenses include but are not limited to: myopia spectacle lenses, reading glasses lenses, sunglasses lenses, contact lens correction lenses, goggle lenses, etc.; specific examples of camera lenses include but are not limited to: mobile phone camera lenses, notebook computer cameras lenses, desktop camera lenses, automotive camera lenses, etc.; specific examples of sensor lenses include, but are not limited to: motion detector lenses, proximity sensor lenses, attitude control lenses, infrared sensor lenses, etc.; specific examples of lighting lenses include, but are not limited to: indoor Lighting lens, outdoor lighting lens, vehicle headlight lens, vehicle fog light lens, vehicle rear light lens, vehicle running light lens, vehicle fog light lens, vehicle interior lens, light emitting diode (LED) lens or organic light emitting diode ( OLED) lenses, etc.; specific examples of imaging lenses include, but are not limited to: scanner lenses, projector lenses, telescope lenses, microscope lenses, magnifying glass lenses, and the like.

Specific examples of the optical film include, but are not limited to, light guide films, reflective films, anti-reflection films, diffusion films, filter films, polarizing films, dichroic films, phase films, and the like. The optical film can be used in the display field, the lighting field, and the like, for example, it can be used in a film for a liquid crystal substrate.

<fifth aspect>

The embodiment of the present application also provides a device, including the above-mentioned optical product of the present application. Examples of the device include, but are not limited to, mobile terminals, glasses, cameras, vehicles (such as automobiles, motorcycles, trains, etc.), lighting equipment (such as desk lamps, ceiling lights, street lights, etc.), imaging devices (such as microscopes, telescopes, projectors, etc.) , scanners, etc.) etc. Wherein, the mobile terminal may specifically include various handheld devices with wireless communication functions (such as mobile phones, tablet computers, mobile notebooks, netbooks, etc.), wearable devices (such as smart watches, etc.), or other processing devices connected to wireless modems, And various forms of user equipment (user equipment, UE), mobile station (mobile station, MS), terminal equipment (terminal device) and so on.

In some preferred embodiments, the device includes a device body and a camera module assembled on the device body, and the camera module includes the lens lens as the above-mentioned optical product of the present application. In some more specific embodiments, the device is a mobile terminal, and the mobile terminal includes a camera module, and the camera module includes the camera lens as the above-mentioned optical product of the present application. In some other specific embodiments, the device is a vehicle, and the vehicle includes a camera module, and the camera module includes the camera lens as the above-mentioned optical product of the present application.

<Example>

Examples of the present application will be described in more detail below, but the present application is not limited to the following examples.

The measurement method of each parameter is described below.

(refractive index)

In this application, the refractive index of polycarbonate can be obtained by testing according to ASTM D542 test standard. Specifically, the refractive index of the polymer is tested by an Abbe refractometer, the model is DR-M2, and the test wavelength is D light (wavelength is 589.3nm).

(Abbe number)

In this application, the Abbe number of polycarbonate is measured by the refractive index of the polymer under different wavelengths (D light, the wavelength is 589.3nm; F light, the wavelength is 486.1nm, C light, the wavelength is 656.3), after that, by v _d = (n _D -1)/(n _F -n _C ) was calculated.

(glass transition temperature Tg)

In this application, the glass transition temperature of polycarbonate is tested by a DSC measuring instrument (model DSC 214 Polyma) in the temperature range of 40 to 200 °C at a rate of 10 °C/min, and the inflection point is selected as the polymer glass Transformation temperature (Tg).

(birefringence)

In this application, the birefringence of the polycarbonate material is tested by a stress birefringence instrument (model WYL-4), the test light is d light (wavelength 589.3nm), and the test range is the center of the injection molded part (diameter 10mm, thickness 1mm). A circle with a diameter of 1mm is selected and the maximum value is recorded as the birefringence of the material.

(transmittance)

In this application, the transmittance of polycarbonate can be obtained by testing according to ASTM D1003 test standard.

(water absorption (24h))

In this application, the 24h water absorption is tested by the gravimetric method. The dried injection molded parts (60*60*2mm) are soaked in water for 24 hours at 23°C, and the masses before and after soaking are weighed as w ₁ and w ₂ respectively. The rate is calculated by (w ₂ -w ₁ )/w ₁ .

(weight average molecular weight)

In this application, the weight-average molecular weight is tested by gel permeation chromatography (Shimadzu), the mobile phase is LiBr's dimethylformamide (DMF) solution, the solubility is 0.01mol/L, and the mobile phase flow rate is 1mL/min , choose polystyrene (PS) as the standard sample.

Example 1

Under a nitrogen atmosphere, add 0.1 mol of optical monomer 1 (structure as follows), 0.1 mol of diphenyl carbonate (optical monomer 1: diphenyl carbonate = 1:1, molar ratio) into a 250 mL three-port glass equipped with mechanical stirring In the flask, heat to 150°C, and add 5×10 ^-4 mol of sodium bicarbonate, carry out transesterification reaction under normal pressure, and react for 0.5h to synthesize prepolymer; then the reaction temperature is slowly raised to 240°C, and the vacuum Raise it to 100Pa, continue the reaction for 0.5h, and finally obtain polycarbonate with a weight average molecular weight of 38kg/mol. The transmittance of the prepared polymer was 89%, the refractive index was 1.635, the Abbe number was 24.5, the birefringence was 30nm, the glass transition temperature Tg was 143°C, and the 24h water absorption was 0.10%.

Example 2

Under nitrogen atmosphere, add 0.1mol optical monomer 2 (structure as follows), 0.1mol diphenyl carbonate (optical monomer 2: diphenyl carbonate = 1:1, molar ratio) into a 250mL three-port glass equipped with mechanical stirring In the flask, heat to 150°C, and add 5×10 ^-4 mol of sodium bicarbonate, carry out transesterification reaction under normal pressure, and react for 0.5h to synthesize prepolymer; then the reaction temperature is slowly raised to 240°C, and the vacuum Raise it to 100Pa, continue the reaction for 0.5h, and finally obtain polycarbonate with a weight average molecular weight of 42kg/mol. The transmittance of the prepared polymer was 88%, the refractive index was 1.656, the Abbe number was 22, the birefringence was 45nm, the glass transition temperature Tg was 147°C, and the 24h water absorption was 0.11%.

Example 3

Under a nitrogen atmosphere, add 0.1 mol of optical monomer 3 (structure as follows), 0.1 mol of diphenyl carbonate (optical monomer 3:diphenyl carbonate = 1:1, molar ratio) into a 250 mL three-port glass equipped with mechanical stirring In the flask, heat to 150°C, and add 5×10 ^-4 mol of sodium bicarbonate, carry out transesterification reaction under normal pressure, and react for 0.5h to synthesize prepolymer; then the reaction temperature is slowly raised to 240°C, and the vacuum Raise it to 100Pa, continue the reaction for 0.5h, and finally obtain polycarbonate with a weight average molecular weight of 37kg/mol. The prepared polymer has a transmittance of 88%, a refractive index of 1.685, an Abbe number of 19, a birefringence of 50nm, a glass transition temperature Tg of 180°C, and a 24h water absorption of 0.08%.

Example 4

Under a nitrogen atmosphere, add 0.1 mol of optical monomer 4 (structure as follows), 0.1 mol of diphenyl carbonate (optical monomer 4:diphenyl carbonate = 1:1, molar ratio) into a 250 mL three-port glass equipped with mechanical stirring In the flask, heat to 150°C, and add 5×10 ^-4 mol of sodium bicarbonate, carry out transesterification reaction under normal pressure, and react for 0.5h to synthesize prepolymer; then the reaction temperature is slowly raised to 240°C, and the vacuum Raise it to 100Pa, continue the reaction for 0.5h, and finally obtain polycarbonate with a weight average molecular weight of 41kg/mol. The prepared polymer has a transmittance of 89%, a refractive index of 1.643, an Abbe number of 19, a birefringence of 40nm, a glass transition temperature Tg of 147°C, and a 24h water absorption of 0.11%.

Example 5

Under nitrogen atmosphere, 0.05mol optical monomer 2, 0.05mol 9,9-bis[4-(2-hydroxyethoxy)phenyl]fluorene (BPEF), 0.1mol diphenyl carbonate (optical monomer 2 : BPEF:diphenyl carbonate=0.5:0.5:1, molar ratio) add in the 250mL three-neck glass flask that mechanical stirring is equipped with, be heated to 150 ℃, and add the sodium bicarbonate of 5 * 10-4mol, carry out under normal pressure Transesterification reaction, react for 0.5h to synthesize prepolymer; then slowly increase the reaction temperature to 240°C, slowly increase the vacuum degree to 100Pa, continue to react for 0.5h, and finally obtain polycarbonate with a weight average molecular weight of 44kg/mol. The prepared polymer had a transmittance of 89%, a refractive index of 1.648, an Abbe number of 23, a birefringence of 48nm, a glass transition temperature Tg of 146°C, and a 24h water absorption of 0.10%.

Comparative example 1

Under a nitrogen atmosphere, 0.1 mol of optical monomer 9,9-bis[4-(2-hydroxyethoxy)phenyl]fluorene (BPEF, structure as follows), 0.1 mol of diphenyl carbonate (BPEF: diphenyl carbonate ester = 1:1, molar ratio) into a 250mL three-neck glass flask equipped with mechanical stirring, heated to 150°C, and added 5×10 ^-4 mol of sodium bicarbonate, and carried out transesterification under normal pressure for 0.5 h Synthesize the prepolymer; then slowly increase the reaction temperature to 240° C., slowly increase the vacuum degree to 100 Pa, continue the reaction for 0.5 h, and finally obtain polycarbonate. The prepared polymer had a transmittance of 88%, a refractive index of 1.639, an Abbe number of 22.5, a birefringence of 65nm, a glass transition temperature Tg of 146°C, and a 24h water absorption of 0.09%.

Claims (25)

1. a polycarbonate, it is characterized in that, described polycarbonate comprises carbonate group, the dihydroxyl compound that forms described carbonate group comprises two hydroxyl-containing substituted or unsubstituted aryl groups connected by M The dihydroxy compound, the M and the divalent X ₃ and other two substituted or unsubstituted aryl groups form a ring structure, and the two hydroxyl-containing substituted or unsubstituted aryl groups interact with each other except the M Not connected or connected to each other via _X4 ; M represents a carbon atom, a silicon atom, a germanium atom or a tin atom; _X3 represents an oxy group, a thio group, a disulfide group, a sulfoxide group, a sulfone group, a substituted or unsubstituted imino group, a substituted or unsubstituted silylene group with 1 to 3 silicon atoms, a substituted or unsubstituted Phosphorous groups, substituted or unsubstituted linear or branched alkylene groups with 1 to 10 carbon atoms, substituted or unsubstituted cycloalkylene groups with 3 to 10 carbon atoms, or carbonyl ; _X4 represents a direct bond, oxygen, sulfur, disulfide, sulfoxide, sulfone, substituted or unsubstituted imino, substituted or unsubstituted silane with 1 to 3 silicon atoms, substituted or unsubstituted A substituted phosphorous group, a substituted or unsubstituted linear or branched alkylene group having 1 to 10 carbon atoms, or a substituted or unsubstituted cycloalkylene group having 3 to 10 carbon atoms. 2. The polycarbonate according to claim 1, characterized in that, the polycarbonate comprises at least one structure selected from the structural unit shown in formula (I) and the structural unit shown in formula (II) unit:

In formula (I) and formula (II), X ₁ and X ₂ each independently represent a substituted or unsubstituted linear or branched alkylene group having 1 to 8 carbon atoms; X ₃ , X ₄ , and M are each the same as above; R ₁ and R ₂ each independently represent hydrogen, halogen, alkyl, aryl, alkoxy, aryloxy, hydroxyl, ester, cyano, amino, thiol, or an atom that can replace the above groups or atomic group; R ₃ to R ₈ each independently represent hydrogen, halogen, alkyl, aryl, alkoxy, aryloxy, hydroxyl, ester, cyano, amino, thiol, or an atom that can replace the above groups or Atomic groups, and at least two adjacent substituents in R ₃ to R ₈ can be connected to each other to form a ring structure; a and b are each independently selected from an integer of 0 to 5; p1 and p2 are each independently selected from an integer of 1 to 3; m ₁ and m ₂ are each independently selected from an integer of 1-4. 3. The polycarbonate according to claim 1 or 2, characterized in that _X represents oxygen, sulfur, disulfide, sulfoxide, sulfone, substituted or unsubstituted carbon atoms of 1 to 10 imino groups, substituted or unsubstituted silane groups with 1 to 16 carbon atoms and 1 to 3 silicon atoms, substituted or unsubstituted phosphorous groups with 1 to 10 carbon atoms, unsubstituted carbon A linear or branched alkylene group or a carbonyl group having 1 to 6 atoms. 4. The polycarbonate according to claim 2 or 3, characterized in that, with respect to the total molar weight of all repeating units of the polycarbonate, the structural unit shown in formula (I) and the formula The content of at least one structural unit among the structural units represented by (II) is 10 mol % or more. 5. polycarbonate according to claim 4, is characterized in that, with respect to the total molar mass of all repeating units of described polycarbonate, described structural unit shown in formula (I) and formula (II ) The content of at least one structural unit among the structural units represented by ) is 80 mol% or less. 6. The polycarbonate according to any one of claims 1 to 5, characterized in that, the polycarbonate also comprises a structural unit selected from formula (III), a structure shown in formula (IV) At least one structural unit in the structural unit shown in unit, formula (V):

In formula (III), formula (IV) and formula (V), X ₁ , X ₂ , a, b are each the same as in formula (I) and formula (II); Y represents oxygen, sulfur, sulfoxide group, sulfone group, substituted or unsubstituted linear or branched alkylene group with 1 to 20 carbon atoms, substituted or unsubstituted carbon atom with 3 to 20 Cycloalkylene, substituted or unsubstituted fluorenylene, substituted or unsubstituted arylene with 6 to 30 carbon atoms, or substituted or unsubstituted heteroarylene with 2 to 30 carbon atoms; R ₉ , R ₁₀ , and R ₁₁ each independently represent hydrogen, a hydroxyl group, a substituted or unsubstituted straight-chain or branched alkyl group having 1 to 6 carbon atoms, or a substituted or unsubstituted carbon atom having 3 Cycloalkyl to 10, substituted or unsubstituted linear or branched alkenyl with 2 to 6 carbon atoms, substituted or unsubstituted linear or branched chain with 1 to 6 carbon atoms -like alkoxy, substituted or unsubstituted aryl with 6 to 30 carbon atoms, substituted or unsubstituted heteroaryl with 2 to 30 carbon atoms; R ₁₂ represents a substituted or unsubstituted linear or branched alkylene group with 1 to 15 carbon atoms, a substituted or unsubstituted cycloalkylene group with 3 to 15 carbon atoms, or a substituted or unsubstituted A substituted straight-chain or branched-chain etherylene group with 1 to 10 carbon atoms; Z ₁ and Z ₂ each independently represent oxygen, sulfur, or a direct bond; m ₃ , m ₄ , and m ₅ are each independently selected from an integer of 1-2. 7. The polycarbonate according to claim 6, characterized in that, with respect to the total molar weight of all repeating units of the polycarbonate, the structural unit shown in formula (I) and the formula (II ) The content of at least one structural unit in the structural units shown in ) is 30 to 60 mol%, and the structural unit selected from the structural unit shown in formula (III), the structural unit shown in formula (IV), the formula (V) The content of at least one structural unit among the structural units shown is 40-85 mol%. 8. The polycarbonate according to any one of claims 1-7, characterized in that, the polycarbonate has a weight average molecular weight of 10,000 g/mol-200,000 g/mol. 9. The polycarbonate according to any one of claims 1-8, characterized in that the polycarbonate has a refractive index greater than 1.56. 10 . The polycarbonate according to claim 1 , wherein the polycarbonate has an Abbe number of 17 or more. 11 . 11 . The polycarbonate according to claim 1 , wherein the polycarbonate has a glass transition temperature of 135° C. or higher. 12 . The polycarbonate according to claim 1 , wherein the polycarbonate has a birefringence of 50 nm or less under d light when the polycarbonate has a thickness of 1 mm. 13 . 13. A preparation method of polycarbonate, characterized in that, comprising: making dihydroxy compound and carbonic acid diester compound carry out transesterification polycondensation under the effect of catalyst so as to obtain polycarbonate, The dihydroxy compound includes two hydroxyl-containing substituted or unsubstituted aryl groups connected by M, and the M forms a ring structure with a divalent _X and two other substituted or unsubstituted aryl groups , the two hydroxyl-containing substituted or unsubstituted aryl groups are not connected to each other except the M or are connected to each other via X ₄ ; M represents a carbon atom, a silicon atom, a germanium atom or a tin atom; _X3 represents an oxy group, a thio group, a disulfide group, a sulfoxide group, a sulfone group, a substituted or unsubstituted imino group, a substituted or unsubstituted silylene group with 1 to 3 silicon atoms, a substituted or unsubstituted Phosphorous groups, substituted or unsubstituted linear or branched alkylene groups with 1 to 10 carbon atoms, substituted or unsubstituted cycloalkylene groups with 3 to 10 carbon atoms, or carbonyl ; _X4 represents a direct bond, oxygen, sulfur, disulfide, sulfoxide, sulfone, substituted or unsubstituted imino, substituted or unsubstituted silane with 1 to 3 silicon atoms, substituted or unsubstituted A substituted phosphorous group, a substituted or unsubstituted linear or branched alkylene group having 1 to 10 carbon atoms, or a substituted or unsubstituted cycloalkylene group having 3 to 10 carbon atoms. 14. The preparation method according to claim 13, characterized in that, comprising: making at least one dihydroxy compound selected from the dihydroxy compound shown in formula (1) and the dihydroxy compound shown in formula (2) Carry out transesterification and polycondensation with carbonic acid diester compounds under the action of a catalyst to obtain polycarbonate:

In formula (1) and formula (2), X ₁ and X ₂ each independently represent a substituted or unsubstituted linear or branched alkylene group having 1 to 8 carbon atoms; X ₃ , X ₄ , and M are each the same as above; R ₁ and R ₂ each independently represent hydrogen, halogen, alkyl, aryl, alkoxy, aryloxy, hydroxyl, ester, cyano, amino, thiol, or an atom that can replace the above groups or atomic group; R ₃ to R ₈ each independently represent hydrogen, halogen, alkyl, aryl, alkoxy, aryloxy, hydroxyl, ester, cyano, amino, thiol, or an atom that can replace the above groups or Atomic groups, and at least two adjacent substituents in R ₃ to R ₈ can be connected to each other to form a ring structure; a and b are each independently selected from an integer of 0 to 5; p1 and p2 are each independently selected from an integer of 1 to 3; m ₁ and m ₂ are each independently selected from an integer of 1-4. 15. according to the described preparation method of claim 13 or 14, it is characterized in that, comprising: also make selected from the dihydroxy compound shown in formula (3), the dihydroxy compound shown in formula (4), the dihydroxy compound shown in formula (5) At least one of the dihydroxy compounds shown in the dihydroxy compounds and carbonic acid diester compounds carry out transesterification polycondensation:

In formula (3), formula (4) and formula (5), X ₁ , X ₂ , a, b are each the same as in formula (1) and formula (2); Y represents oxygen, sulfur, sulfoxide group, sulfone group, substituted or unsubstituted linear or branched alkylene group with 1 to 20 carbon atoms, substituted or unsubstituted carbon atom with 3 to 20 Cycloalkylene, substituted or unsubstituted fluorenylene, substituted or unsubstituted arylene with 6 to 30 carbon atoms, or substituted or unsubstituted heteroarylene with 2 to 30 carbon atoms; R ₉ , R ₁₀ , and R ₁₁ each independently represent hydrogen, a hydroxyl group, a substituted or unsubstituted straight-chain or branched alkyl group having 1 to 6 carbon atoms, or a substituted or unsubstituted carbon atom having 3 Cycloalkyl to 10, substituted or unsubstituted linear or branched alkenyl with 2 to 6 carbon atoms, substituted or unsubstituted linear or branched chain with 1 to 6 carbon atoms -like alkoxy, substituted or unsubstituted aryl with 6 to 30 carbon atoms, substituted or unsubstituted heteroaryl with 2 to 30 carbon atoms; R ₁₂ represents a substituted or unsubstituted linear or branched alkylene group with 1 to 15 carbon atoms, a substituted or unsubstituted cycloalkylene group with 3 to 15 carbon atoms, or a substituted or unsubstituted A substituted straight-chain or branched-chain etherylene group with 1 to 10 carbon atoms; Z ₁ and Z ₂ each independently represent oxygen, sulfur, or a direct bond; m ₃ , m ₄ , and m ₅ are each independently selected from an integer of 1-2. 16. according to the preparation method described in any one in the claim 13～15, it is characterized in that, described carbonic acid diester compound is selected from diphenyl carbonate, xylyl carbonate, two (chlorophenyl) carbonate , at least one of dimethyl carbonate, diethyl carbonate, dibutyl carbonate and dicyclohexyl carbonate. 17. The preparation method according to any one of claims 13-16, characterized in that the catalyst is an alkaline substance or an ionic liquid catalyst. 18. The preparation method according to any one of claims 13-17, characterized in that the transesterification polycondensation is transesterification melt polycondensation. 19. The preparation method according to any one of claims 13-18, characterized in that, relative to 1 mole of the total amount of all dihydroxy compounds, the amount of the carbonic acid diester compound is 0.97-1.2 moles. 20. A resin composition, characterized in that the resin composition comprises the polycarbonate according to any one of claims 1-12 or the preparation method according to any one of claims 13-19 produced polycarbonate. 21. An optical product, characterized in that the optical product comprises the polycarbonate according to any one of claims 1-12 or is prepared by the preparation method according to any one of claims 13-19 of polycarbonate. 22. The optical product according to claim 21, wherein the optical product comprises an optical lens, an optical film, an optical disc, a light guide plate or a display panel. 23. The optical article according to claim 22, wherein the optical lens comprises a spectacle lens, a camera lens, a sensor lens, an illumination lens, and an imaging lens. 24. A device, characterized in that it comprises the optical article according to any one of claims 21-23. 25. The device according to claim 24, characterized in that the device comprises a device body and a camera module assembled on the device body, the camera module includes a lens as the optical product.