WO2017138509A1 - 液晶組成物、及び単層塗布型水平配向フィルム - Google Patents
液晶組成物、及び単層塗布型水平配向フィルム Download PDFInfo
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- WO2017138509A1 WO2017138509A1 PCT/JP2017/004330 JP2017004330W WO2017138509A1 WO 2017138509 A1 WO2017138509 A1 WO 2017138509A1 JP 2017004330 W JP2017004330 W JP 2017004330W WO 2017138509 A1 WO2017138509 A1 WO 2017138509A1
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- 0 CCCCc1cc(C(C)(*)CC)ccc1*C(C)(C)c1ccc(C(C)(CC)OC)cc1 Chemical compound CCCCc1cc(C(C)(*)CC)ccc1*C(C)(C)c1ccc(C(C)(CC)OC)cc1 0.000 description 6
- DIDVOEJESDCVSK-UHFFFAOYSA-N CC(OC(CC1)=CC=C1C(OC)=O)=O Chemical compound CC(OC(CC1)=CC=C1C(OC)=O)=O DIDVOEJESDCVSK-UHFFFAOYSA-N 0.000 description 1
- NUVBSKCKDOMJSU-UHFFFAOYSA-N CCOC(c(cc1)ccc1O)=O Chemical compound CCOC(c(cc1)ccc1O)=O NUVBSKCKDOMJSU-UHFFFAOYSA-N 0.000 description 1
- LXCFILQKKLGQFO-UHFFFAOYSA-N COC(c(cc1)ccc1O)=O Chemical compound COC(c(cc1)ccc1O)=O LXCFILQKKLGQFO-UHFFFAOYSA-N 0.000 description 1
- VCCBEIPGXKNHFW-UHFFFAOYSA-N Oc(cc1)ccc1-c(cc1)ccc1O Chemical compound Oc(cc1)ccc1-c(cc1)ccc1O VCCBEIPGXKNHFW-UHFFFAOYSA-N 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K19/38—Polymers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/26—Esters containing oxygen in addition to the carboxy oxygen
- C08F220/30—Esters containing oxygen in addition to the carboxy oxygen containing aromatic rings in the alcohol moiety
- C08F220/303—Esters containing oxygen in addition to the carboxy oxygen containing aromatic rings in the alcohol moiety and one or more carboxylic moieties in the chain
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F224/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a heterocyclic ring containing oxygen
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L33/04—Homopolymers or copolymers of esters
- C08L33/14—Homopolymers or copolymers of esters of esters containing halogen, nitrogen, sulfur, or oxygen atoms in addition to the carboxy oxygen
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L37/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a heterocyclic ring containing oxygen; Compositions of derivatives of such polymers
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/52—Liquid crystal materials characterised by components which are not liquid crystals, e.g. additives with special physical aspect: solvents, solid particles
- C09K19/54—Additives having no specific mesophase characterised by their chemical composition
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/13363—Birefringent elements, e.g. for optical compensation
Definitions
- the present invention relates to a liquid crystal composition and a single-layer coating type horizontal alignment film.
- a liquid crystal composition having optical characteristics suitable for applications such as a display device and a recording material, and particularly suitable for producing optical compensation films such as polarizing plates and retardation plates for liquid crystal displays, and the composition
- the present invention relates to a single-layer coated horizontal alignment film obtained from a product.
- the polymerizable liquid crystal compound used here is generally a liquid crystal compound having a polymerizable group and a liquid crystal structure part (structure part having a spacer part and a mesogen part), and an acrylic group is widely used as the polymerizable group. ing.
- Such a polymerizable liquid crystal compound is generally formed into a polymer (film) by a method of polymerizing by irradiation with radiation such as ultraviolet rays.
- a method of polymerizing by irradiation with radiation such as ultraviolet rays.
- a method in which a specific polymerizable liquid crystal compound having an acrylic group is supported between supports and a polymer is obtained by irradiating radiation while maintaining the compound in a liquid crystal state Patent Document 1
- Patent Document 2 a method of obtaining a polymer by adding a photopolymerization initiator to a mixture of two kinds of polymerizable liquid crystal compounds or a composition obtained by mixing a chiral liquid crystal with this mixture and irradiating ultraviolet rays.
- Patent Documents 3 and 4 an alignment film using a polymerizable liquid crystal compound or polymer that does not require a liquid crystal alignment film
- Patent Documents 5 and 6 an alignment film using a polymer containing a photocrosslinking site
- the present inventors have reported a material for enabling the production of a single-layer coating type horizontal alignment film having a high refractive index anisotropy ( ⁇ n) by a simple process (Patent Document 7). However, a film having a higher refractive index anisotropy ( ⁇ n) is required.
- JP-A-62-70407 JP-A-9-208957 European Patent Application No. 1093025 International Publication No. 2008/031243 JP 2008-164925 A Japanese Patent Laid-Open No. 11-189665 International Publication No. 2013/133078
- the present invention has been made in view of the above problems, and is obtained from a liquid crystal composition capable of producing a single-layer coating type horizontal alignment film having a higher refractive index anisotropy ( ⁇ n), and the liquid crystal composition.
- An object is to provide a single-layer coating type horizontal alignment film.
- the present inventor has found that a polymer containing a ⁇ -butyrolactone skeleton in the main chain and having a cinnamate structure on the side chain extending from the ⁇ position of the lactone ring.
- a film obtained from a composition containing a compound that does not exhibit a predetermined liquid crystallinity and an organic solvent can be subjected to low-temperature treatment, whereby a horizontal alignment film having a higher refractive index anisotropy ( ⁇ n) is obtained.
- ⁇ n refractive index anisotropy
- the present invention provides the following liquid crystal composition and single-layer coating type horizontal alignment film.
- A a polymer containing repeating units represented by the following formulas [1a], [1b] and [1c]
- B A liquid crystal composition comprising a compound having no liquid crystallinity represented by the following formula [7a], [7b] or [7c]
- C an organic solvent.
- X and Y are each independently a group represented by the following formula [2] or [3], (In the formula, R 1 is a hydrogen atom or a methyl group, and a broken line is a bond.)
- M 1 is a group represented by the following formula [4]
- M 2 is a group represented by the following formula [5] or [6]
- s1, s2, s3, s4, s5 and s6 are each independently 1 or 2
- G 1 and G 2 are each independently a single bond, —COO— or —OCO—.
- R 2 and R 3 are each independently a hydrogen atom, a halogen atom, a cyano group, an alkyl group having 1 to 10 carbon atoms, or an alkoxy group having 1 to 10 carbon atoms, and R 4 is an alkyl group having 1 to 10 carbon atoms.
- 3 is an alkyl group, and the broken line is a bond.
- A is a linear or branched alkyl group having 2 to 15 carbon atoms
- m, n and p are numbers satisfying 0 ⁇ m ⁇ 1, 0 ⁇ n ⁇ 1, 0 ⁇ p ⁇ 0.5 and m + n + p ⁇ 1, respectively.
- q and r are each independently an integer of 2 to 9.
- R 5 and R 6 are each independently —OH, —OCH 3 , —C ( ⁇ O) OH, —C ( ⁇ O) OCH 3 , —C ( ⁇ O) OCH 2 CH 3 or —OC ( ⁇ O) CH 3
- R 7 and R 8 are each independently a hydrogen atom, —OH, —OCH 3 , —C ( ⁇ O) OH, —C ( ⁇ O) OCH 3 , — C ( ⁇ O) OCH 2 CH 3 or —OC ( ⁇ O) CH 3
- G 3 is a single bond, —C ( ⁇ O) —O— or —O—C ( ⁇ O) —
- G 4 is a single bond, —CH ⁇ CH— or —CH 2 CH 2 —.
- mold horizontal alignment film including the process of apply
- a single-layer coating type horizontal alignment film having a high ⁇ n can be produced by a process of applying the liquid crystal composition of the present invention, irradiating linearly polarized light at room temperature, and performing post-baking at a low temperature.
- the liquid crystal composition of the present invention comprises (A) a predetermined polymer, (B) a compound that does not exhibit predetermined liquid crystallinity, and (C) an organic solvent.
- the polymer of the component (A) contains repeating units represented by the following formulas [1a] and [1b], and further contains a repeating unit represented by the following formula [1c] as necessary.
- X and Y are each independently a group represented by the following formula [2] or [3].
- R 1 is a hydrogen atom or a methyl group.
- a broken line is a bond (hereinafter the same).
- X and Y are preferably groups represented by the formula [3].
- M 1 is a group represented by the following formula [4].
- M 2 is a group represented by the following formula [5] or [6].
- s1, s2, s3, s4, s5 and s6 are each independently 1 or 2
- G 1 and G 2 are each independently a single bond, —COO— Or -OCO-.
- R 2 and R 3 are each independently a hydrogen atom, a halogen atom, a cyano group, an alkyl group having 1 to 10 carbon atoms, or an alkoxy group having 1 to 10 carbon atoms.
- R 4 is an alkyl group having 1 to 3 carbon atoms.
- halogen atom examples include a fluorine atom, a chlorine atom, a bromine atom, and an iodine atom.
- a fluorine atom is preferable.
- the alkyl group represented by R 2 and R 3 may be linear, branched or cyclic. In the present invention, a linear alkyl group having 1 to 10 carbon atoms is preferred. Specific examples of the alkyl group include methyl group, ethyl group, n-propyl group, isopropyl group, cyclopropyl group, n-butyl group, isobutyl group, s-butyl group, tert-butyl group, cyclobutyl group, n- Examples include a pentyl group, a cyclopentyl group, an n-hexyl group, a cyclohexyl group, an n-heptyl group, an n-octyl group, an n-nonyl group, and an n-decyl group.
- alkyl group having 1 to 3 carbon atoms is more preferable, and a methyl group, an ethyl group, and the like are particularly preferable.
- the alkyl group represented by R 4 may be either linear or branched, but in the present invention, a linear alkyl group having 1 to 3 carbon atoms is preferable.
- the alkoxy group may be linear, branched or cyclic, but in the present invention, a linear alkoxy group having 1 to 10 carbon atoms is preferable.
- Specific examples of the alkoxy group include methoxy group, ethoxy group, n-propoxy group, isopropoxy group, n-butoxy group, isobutoxy group, s-butoxy group, tert-butoxy group, n-pentoxy group, n-hexyl. Examples thereof include an oxy group, n-heptyloxy group, n-octyloxy group, n-nonyloxy group, n-decyloxy group and the like.
- an alkoxy group having 1 to 3 carbon atoms is more preferable, and a methoxy group, an ethoxy group, and the like are particularly preferable.
- part or all of the hydrogen atoms may be substituted with a halogen atom such as a fluorine atom.
- R 2 or R 3 is more preferably a hydrogen atom, a fluorine atom, a cyano group, a methyl group, or a methoxy group.
- R 4 is preferably a methyl group or an ethyl group, and more preferably a methyl group.
- G 1 is preferably —COO— or —OCO—, and G 2 is preferably a single bond.
- A is a linear or branched alkyl group having 2 to 15 carbon atoms.
- Specific examples of the alkyl group include ethyl, n-propyl, isopropyl, n-butyl, isobutyl, s-butyl, tert-butyl, n-pentyl, 1-methyl-n-butyl.
- an alkyl group having 4 to 15 carbon atoms, particularly 4 to 12 carbon atoms is preferable, and an n-butyl group, 2-ethyl-n-hexyl group, n -Dodecyl group and the like are more preferable.
- m, n, and p are numbers satisfying 0 ⁇ m ⁇ 1, 0 ⁇ n ⁇ 1, 0 ⁇ p ⁇ 0.5, and m + n + p ⁇ 1, respectively.
- m, n, and p are 0.2 ⁇ m ⁇ 0.9, 0.1 ⁇ n ⁇ 0.8, and 0 ⁇ p ⁇ 0.0, respectively. 4 is preferable, and 0.2 ⁇ m ⁇ 0.8, 0.1 ⁇ n ⁇ 0.5, and 0.1 ⁇ p ⁇ 0.3 are more preferable.
- M 2 is a group represented by the formula [6]
- p 0, 0 ⁇ m ⁇ 1, 0 ⁇ n ⁇ 1, and m + n ⁇ 1, and 0.2 More preferably, ⁇ m ⁇ 0.9 and 0.1 ⁇ n ⁇ 0.8 are satisfied, and it is further preferable that 0.5 ⁇ m ⁇ 0.8 and 0.2 ⁇ n ⁇ 0.5 are satisfied.
- q and r are each independently an integer of 2 to 9, preferably 3 to 6, and more preferably 5 or 6 as q.
- the polymer of component (A) preferably has a weight average molecular weight (Mw) of 3,000 to 200,000, more preferably 4,000 to 150,000, and 5,000 to 100,000. More preferably. If Mw exceeds 200,000, solubility in the solvent may be reduced and handling properties may be reduced. If Mw is less than 3,000, curing is insufficient during heat curing, and solvent resistance and heat resistance are reduced. There is a case. In addition, Mw is a polystyrene conversion measured value by gel permeation chromatography (GPC).
- GPC gel permeation chromatography
- the polymer of the component (A) may contain other repeating units other than the formulas [1a] to [1c] as long as the effects of the present invention are not impaired.
- the polymerizable compound that gives the other repeating unit include acrylic acid ester compounds, methacrylic acid ester compounds, maleimide compounds, acrylamide compounds, acrylonitrile, maleic anhydride, and styrene compounds.
- the content of other repeating units is preferably 0 to 10 mol% in 100 mol% of all repeating units. If the content of other repeating units is too large, the properties of the polymer, such as liquid crystal properties, may deteriorate.
- polymerization may be performed in the presence of a polymerizable compound that gives the other repeating unit.
- the polymer of the component (A) may be any of a random copolymer, an alternating copolymer, and a block copolymer.
- the said polymer may be used individually by 1 type or in combination of 2 or more types.
- Examples of the method for synthesizing the polymer of component (A) include, but are not limited to, the methods described in International Publication Nos. 2013/133078 and 2015/025794.
- R 5 and R 6 are each independently —OH, —OCH 3 , —C ( ⁇ O) OH, —C ( ⁇ O) OCH 3 , —C ( ⁇ O) OCH 2 CH 3 or —OC ( ⁇ O) CH 3 .
- —C ( ⁇ O) OCH 3 or —C ( ⁇ O) OCH 2 CH 3 is preferred, and —C ( ⁇ O) OCH 2 CH 3 is more preferred.
- R 7 and R 8 are each independently a hydrogen atom, —OH, —OCH 3 , —C ( ⁇ O) OH, —C ( ⁇ O) OCH 3 , —C ( ⁇ O) OCH 2 CH 3 or —OC ( ⁇ O) CH 3 .
- —C ( ⁇ O) OCH 3 or —C ( ⁇ O) OCH 2 CH 3 is preferred, and —C ( ⁇ O) OCH 2 CH 3 is more preferred.
- G 3 is a single bond, —C ( ⁇ O) —O— or —O—C ( ⁇ O) —.
- a single bond or —C ( ⁇ O) —O— is preferable, and a single bond is more preferable.
- G 4 is a single bond, —CH ⁇ CH— or —CH 2 CH 2 —. Of these, a single bond or —CH ⁇ CH— is preferable, and a single bond is more preferable.
- Examples of the compound represented by the formula [7a] include, but are not limited to, those shown below.
- Examples of the compound represented by the formula [7b] include, but are not limited to, those shown below.
- Examples of the compound represented by the formula [7c] include, but are not limited to, those shown below.
- the compounds represented by the formulas [7a] to [7c] can be synthesized using a known method (for example, esterification reaction), or can be obtained as a commercial product.
- the content of the component (B) is preferably 1 to 10 parts by mass and more preferably 1 to 5 parts by mass with respect to 100 parts by mass of the polymer of the component (A). If content of (B) component is the said range, the effect of a retardation improvement will be shown.
- the compound of a component may be used individually by 1 type or in combination of 2 or more types.
- organic solvent examples include ethers such as tetrahydrofuran and dioxane; aromatic hydrocarbons such as benzene, toluene and xylene; N, N-dimethylformamide, N-methyl-2-pyrrolidone (NMP) Polar solvents such as ethyl acetate, esters such as butyl acetate and ethyl lactate; methyl 3-methoxypropionate, methyl 2-methoxypropionate, ethyl 3-methoxypropionate, ethyl 2-methoxypropionate, 3-ethoxypropion Alkoxy esters such as ethyl acrylate and ethyl 2-ethoxypropionate; glycol dialkyl ethers such as ethylene glycol dimethyl ether and propylene glycol dimethyl ether; diethylene glycol dimethyl ether, diethylene glycol diethyl ether, die Diglycol dialkyl
- toluene, propylene glycol monomethyl ether, propylene glycol monomethyl ether acetate, ethyl lactate, cyclohexanone and the like are preferable.
- the amount of the organic solvent used is preferably about 60 to 95% by mass in the composition.
- a surfactant may be added to the composition of the present invention for the purpose of improving the affinity with the substrate.
- the surfactant is not particularly limited, and examples thereof include a fluorine-based surfactant, a silicone-based surfactant, and a nonionic surfactant.
- a fluorine-based surfactant having a high effect of improving affinity with a substrate is preferable. .
- fluorosurfactants hereinafter referred to as trade names
- EFTOP registered trademark
- EF301 EF303
- EF352 manufactured by Tochem Products
- MegaFac registered trademark
- F171, F173, R- 30, R-30N manufactured by DIC Corporation
- Florard registered trademark
- FC430 FC431
- Surflon registered trademark
- SC101, SC102 , SC103, SC104, SC105, SC106 manufactured by Asahi Glass Co., Ltd.
- surfactant can also be used individually by 1 type or in combination of multiple types, The addition amount is 5 mass parts or less with respect to 100 mass parts of polymers.
- an adhesion promoter may be added to the composition of the present invention for the purpose of improving the adhesion to the substrate.
- chlorosilanes such as trimethylchlorosilane, dimethylvinylchlorosilane, methyldiphenylchlorosilane, chloromethyldimethylchlorosilane; trimethylmethoxysilane, dimethyldiethoxysilane, methyldimethoxysilane, dimethylvinylethoxysilane, diphenyldimethoxysilane, phenyltri Alkoxysilanes such as ethoxysilane; silazanes such as hexamethyldisilazane, N, N′-bis (trimethylsilyl) urea, dimethyltrimethylsilylamine, trimethylsilylimidazole; vinyltrichlorosilane, ⁇ -chloropropyltrimethoxysilane, ⁇ -amino Propy
- the adhesion promoter can be used alone or in combination of two or more, and the addition amount is preferably 1 part by mass or less with respect to 100 parts by mass of the polymer.
- a substrate for example, a silicon / silicon dioxide coated substrate, a silicon nitride substrate, a substrate coated with a metal such as aluminum, molybdenum, or chromium, a glass substrate, a quartz substrate, an ITO substrate
- a film for example, resin film such as triacetyl cellulose (TAC) film, cycloolefin polymer film, polyethylene terephthalate film, acrylic film, etc.
- TAC triacetyl cellulose
- cycloolefin polymer film polyethylene terephthalate film, acrylic film, etc.
- a film can be formed by applying by a subsequent method such as spin coating, ink jet method, printing method or the like to form a coating film, followed by heat drying with a hot plate or oven.
- a heating temperature and a heating time appropriately selected from the range of 50 to 100 ° C. and 0.1 to 60 minutes are employed.
- the heating temperature and heating time are preferably 50 to 80 ° C. and 0.1 to 2 minutes.
- the film thus formed is irradiated with linearly polarized light and post-baked to obtain a single-layer coating type horizontal alignment film.
- a method of irradiating linearly polarized light ultraviolet light or visible light having a wavelength of 150 to 450 nm is usually used, and it is performed by irradiating the linearly polarized light at room temperature or in a heated state.
- the post-bake may be heated with a hot plate or an oven, and the temperature and time are preferably 90 to 150 ° C. and 2 to 20 minutes, more preferably 95 to 120 ° C. and 5 to 20 minutes. is there.
- the film thickness of the single-layer coating type horizontal alignment film of the present invention can be appropriately selected in consideration of the level difference of the substrate to be used and the optical and electrical properties, and is preferably 0.1 to 3 ⁇ m, for example.
- the thus obtained single-layer coating type horizontal alignment film of the present invention is a material having optical characteristics suitable for applications such as display devices and recording materials, and in particular, polarizing plates and retardation plates for liquid crystal displays. It is suitable as an optical compensation film.
- the precipitated DCC urea was filtered off, and the filtrate was washed twice with 0.5 mol / L hydrochloric acid (150 mL), saturated aqueous sodium hydrogen carbonate solution (150 mL) and saturated brine (150 mL), and dried over magnesium sulfate. Distilled off and purified by recrystallization with ethanol to obtain 39.6 g of the target polymerizable compound (M1) (yield 89%). The measurement results of NMR are shown below.
- Compound (2) was synthesized by esterification reaction of 4- (4-hydroxyphenyl) benzoic acid (manufactured by Tokyo Chemical Industry Co., Ltd.) and ethanol using sulfuric acid.
- Compound (6) was synthesized by esterification reaction of p-anisic acid (manufactured by Tokyo Chemical Industry Co., Ltd.) and compound (1) using DMAP.
- Example 1 Toluene / cyclohexanone containing 150 mg of polymer (P1) and 7.5 mg of compound (1) (manufactured by Tokyo Chemical Industry Co., Ltd.) and 0.02% by mass of R-30N (manufactured by DIC Corporation) as a surfactant (75/25, w / w) dissolved in 0.850 g to prepare a liquid crystal composition.
- the obtained composition was applied to a glass substrate by spin coating (300 rpm / 5 seconds, 500 rpm / 20 seconds), pre-baked on a hot plate at a temperature of 55 ° C. for 30 seconds, and then allowed to cool to room temperature.
- the coating film formed on the glass substrate was irradiated with linearly polarized ultraviolet light at 100 mJ / cm 2 (illuminance measurement at a wavelength of 313 nm) vertically, and then post-baked on a hot plate at 100 ° C. for 15 minutes to obtain a film. It was.
- the obtained film had a thickness of 1.8 ⁇ m, a retardation value ( ⁇ nd) of 212 nm, and ⁇ n of 0.118.
- Example 2 A liquid crystal composition and a film were obtained in the same manner as in Example 1 except that the compound (2) was used instead of the compound (1).
- the obtained film had a film thickness of 1.9 ⁇ m, a retardation value of 275 nm, and ⁇ n of 0.145.
- Example 3 A liquid crystal composition and a film were obtained in the same manner as in Example 1, except that compound (3) (manufactured by Tokyo Chemical Industry Co., Ltd.) was used instead of compound (1).
- the obtained film had a film thickness of 1.8 ⁇ m, a retardation value of 235 nm, and ⁇ n of 0.127.
- Example 4 A liquid crystal composition and a film were obtained in the same manner as in Example 1 except that 3.0 mg of compound (4) (manufactured by Tokyo Chemical Industry Co., Ltd.) was used instead of 7.5 mg of compound (1).
- the obtained film had a thickness of 1.9 ⁇ m, a retardation value of 211 nm, and ⁇ n of 0.111.
- Example 5 A liquid crystal composition and a film were obtained in the same manner as in Example 1 except that compound (5) (manufactured by Tokyo Chemical Industry Co., Ltd.) was used instead of compound (1).
- the obtained film had a thickness of 2.0 ⁇ m, a retardation value of 242 nm, and ⁇ n of 0.120.
- Example 6 A liquid crystal composition and a film were obtained in the same manner as in Example 1 except that the compound (6) was used instead of the compound (1).
- the obtained film had a film thickness of 1.8 ⁇ m, a retardation value of 255 nm, and ⁇ n of 0.142.
- Example 7 A liquid crystal composition and a film were obtained in the same manner as in Example 1, except that compound (7) (manufactured by ALDRICH) was used instead of compound (1).
- the obtained film had a thickness of 1.8 ⁇ m, a retardation value of 240 nm, and ⁇ n of 0.133.
- Example 8 A liquid crystal composition and a film were obtained in the same manner as in Example 1 except that compound (8) (manufactured by ALDRICH) was used instead of compound (1).
- the obtained film had a thickness of 2.0 ⁇ m, a retardation value of 207 nm, and ⁇ n of 0.103.
- Example 9 A liquid crystal composition and a film were obtained in the same manner as in Example 1 except that compound (9) (manufactured by Wako Pure Chemical Industries, Ltd.) was used instead of compound (1).
- the obtained film had a thickness of 1.7 ⁇ m, a retardation value of 182 nm, and ⁇ n of 0.107.
- Example 10 Toluene / cyclohexanone (75/25, w / w) containing 150 mg of polymer (P2) and 7.5 mg of compound (2) with 0.02% by mass of surfactant R-30 (manufactured by DIC Corporation) A liquid crystal composition was prepared by dissolving in 0.850 g. The obtained composition was applied to a glass substrate by spin coating (300 rpm / 5 seconds, 900 rpm / 20 seconds), pre-baked on a hot plate at a temperature of 55 ° C. for 30 seconds, and then allowed to cool to room temperature.
- spin coating 300 rpm / 5 seconds, 900 rpm / 20 seconds
- the coating film formed on the glass substrate was irradiated with linearly polarized ultraviolet light at 100 mJ / cm 2 (illuminance measurement at a wavelength of 313 nm) vertically, and then post-baked on a hot plate at 100 ° C. for 15 minutes to obtain a film. It was.
- the obtained film had a thickness of 1.7 ⁇ m, a retardation value ( ⁇ nd) of 110 nm, and ⁇ n of 0.065.
- Example 11 150 mg of the polymer (P3) and 7.5 mg of the compound (2) were dissolved in 0.850 g of cyclohexanone containing 0.02% by mass of a surfactant R-30 (manufactured by DIC Corporation), and a liquid crystal composition was obtained. Prepared. The obtained composition was applied to a glass substrate by spin coating (300 rpm / 5 seconds, 500 rpm / 20 seconds), pre-baked on a hot plate at a temperature of 55 ° C. for 30 seconds, and then allowed to cool to room temperature.
- a surfactant R-30 manufactured by DIC Corporation
- the coating film formed on the glass substrate was irradiated with linearly polarized ultraviolet light at 100 mJ / cm 2 (illuminance measurement at a wavelength of 313 nm) vertically, and then post-baked on a hot plate at 100 ° C. for 15 minutes to obtain a film. It was.
- the obtained film had a thickness of 1.5 ⁇ m, a retardation value ( ⁇ nd) of 35 nm, and ⁇ n of 0.023.
- Example 1 A liquid crystal composition and a film were obtained in the same manner as in Example 1 except that the compound (1) was not used.
- the obtained film had a film thickness of 1.8 ⁇ m, a retardation value of 175 nm, and ⁇ n of 0.099.
- Example 2 A liquid crystal composition and a film were obtained in the same manner as in Example 10 except that the compound (2) was not used.
- the obtained film had a thickness of 1.6 ⁇ m, a retardation value of 87 nm, and ⁇ n of 0.054.
- Example 3 A liquid crystal composition and a film were obtained in the same manner as in Example 11 except that the compound (2) was not used.
- the obtained film had a thickness of 1.5 ⁇ m, a retardation value of 26 nm, and ⁇ n of 0.018.
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Abstract
Description
1.(A)下記式[1a]、[1b]及び[1c]で表される繰り返し単位を含む重合体、
(B)下記式[7a]、[7b]又は[7c]で表される液晶性を示さない化合物、及び
(C)有機溶媒
を含む液晶組成物。
M1は、下記式[4]で表される基であり、M2は、下記式[5]又は[6]で表される基であり、
Aは、炭素数2~15の直鎖状又は分岐状のアルキル基であり、
m、n及びpは、それぞれ0<m<1、0<n<1、0≦p≦0.5、かつ、m+n+p≦1を満たす数であり、
q及びrは、それぞれ独立に、2~9の整数である。]
2.1の液晶組成物を用いて作製された単層塗布型水平配向フィルム。
3.2の単層塗布型水平配向フィルムを備える光学部材。
4.1の液晶組成物を基板に塗布する工程、偏光を照射する工程、及びポストベークをする工程を含む、単層塗布型水平配向フィルムの製造方法。
5.前記偏光が、直線偏光紫外線である4の単層塗布型水平配向フィルムの製造方法。
本発明の液晶組成物は、(A)所定の重合体、(B)所定の液晶性を示さない化合物、及び(C)有機溶媒を含むものである。
(C)成分の有機溶媒としては、例えば、テトラヒドロフラン、ジオキサン等のエーテル類;ベンゼン、トルエン、キシレン等の芳香族炭化水素類;N,N-ジメチルホルムアミド、N-メチル-2-ピロリドン(NMP)等の極性溶媒;酢酸エチル、酢酸ブチル、乳酸エチル等のエステル類;3-メトキシプロピオン酸メチル、2-メトキシプロピオン酸メチル、3-メトキシプロピオン酸エチル、2-メトキシプロピオン酸エチル、3-エトキシプロピオン酸エチル、2-エトキシプロピオン酸エチル等のアルコキシエステル類;エチレングリコールジメチルエーテル、プロピレングリコールジメチルエーテル等のグリコールジアルキルエーテル類;ジエチレングリコールジメチルエーテル、ジエチレングリコールジエチルエーテル、ジエチレングリコールメチルエチルエーテル、ジプロピレングリコールジメチルエーテル等のジグリコールジアルキルエーテル類;エチレングリコールモノメチルエーテル、エチレングリコールモノエチルエーテル、プロピレングリコールモノメチルエーテル、プロピレングリコールモノエチルエーテル等のグリコールモノアルキルエーテル類;ジエチレングリコールモノメチルエーテル、ジエチレングリコールモノエチルエーテル、ジプロピレングリコールモノメチルエーテル、ジプロピレングリコールモノエチルエーテル等のジグリコールモノアルキルエーテル類;プロピレングリコールモノメチルエーテルアセテート、カルビトールアセテート、エチルセロソルブアセテート等のグリコールモノアルキルエーテルエステル類;シクロヘキサノン、メチルエチルケトン、メチルイソブチルケトン、2-ヘプタノン等のケトン類が挙げられる。これらの有機溶媒は、1種単独でも、2種以上を組み合わせて使用してもよい。
本発明の組成物には、基板との親和性を向上させる目的で、界面活性剤を添加してもよい。界面活性剤としては、特に限定されず、フッ素系界面活性剤、シリコーン系界面活性剤、ノニオン系界面活性剤等が挙げられるが、基板との親和性改善効果の高いフッ素系界面活性剤が好ましい。
本発明の組成物を基板(例えば、シリコン/二酸化シリコン被覆基板、シリコンナイトライド基板、金属、例えば、アルミニウム、モリブデン、クロム等が被覆された基板、ガラス基板、石英基板、ITO基板等)やフィルム(例えば、トリアセチルセルロース(TAC)フィルム、シクロオレフィンポリマーフィルム、ポリエチレンテレフタレートフィルム、アクリルフィルム等の樹脂フィルム)等の上に、バーコート、スピンコート、フローコート、ロールコート、スリットコート、スリットコートに続いたスピンコート、インクジェット法、印刷法等の方法によって塗布して塗膜を形成し、その後、ホットプレート又はオーブン等で加熱乾燥することにより、フィルムを形成することができる。
[NMR]
化合物を重水素化クロロホルム(CDCl3)に溶解し、核磁気共鳴装置(300MHz、ジオール社製)を用いて1H-NMRを測定した。
[平均分子量測定]
昭和電工(株)製Shodex GPC-101(溶媒:テトラヒドロフラン(THF)、検量線:標準ポリスチレン)を用いて、数平均分子量(Mn)及び重量平均分子量(Mw)を測定した。
[フィルムのリタデーション値]
リタデーション測定装置(RETS-100、大塚電子(株)製)を用いて波長550nmのリタデーション値角度依存性を測定した。
1H-NMR(CDCl3) δ: 1.57(m, 4H), 1.70(m, 2H), 1.86(m, 2H), 4.00(m, 2H), 4.19(m, 2H), 5.82(m, 1H), 6.12(m, 1H), 6.39(m, 1H), 6.97(d, 2H), 7.29(m, 2H), 7.36(m, 1H), 7.47(m, 2H), 7.62(m, 4H), 8.18(m, 2H)
1H-NMR (CDCl3) δ: 1.62(m, 2H), 1.76(m, 2H), 1.87(m, 2H), 3.85(m, 2H), 4.00(m, 4H), 4.90(m, 1H), 6.87(m, 4H), 7.42(m, 4H)
1H-NMR (CDCl3) δ: 1.60-1.95(m, 6H), 2.64(m, 1H), 3.11(s, 1H), 4.02(t, 2H), 4.60(m, 1H), 4.82(s, 1H), 5.64(s, 1H), 6.24(s, 1H), 6.88(d, 2H), 6.94(d, 2H), 7.44(m, 4H)
1H-NMR(CDCl3) δ: 1.60-1.90(m, 6H), 2.63(m, 1H), 3.09(m, 1H), 3.87(s, 3H), 4.03(m, 2H), 4.57(m, 1H), 5.64(m, 1H), 6.24(d, 1H), 6.54(d, 1H), 6.95(m, 4H), 7.26(m, 2H), 7.44(m, 2H), 7.57(m, 4H), 7.86(d, 1H)
1H-NMR(CDCl3) δ: 1.3-1.7(m, 8H), 3.67(m, 2H), 3.88(s, 3H), 4.03(t, 2H), 6.91(d, 2H), 7.99(d, 2H).
この固体をシリカゲルカラムクロマトグラフィ(カラム:シリカゲル60、0.063-0.200mm、メルク社製、溶出液:ヘキサン/酢酸エチル=2/1)で精製した。得られた溶液の溶媒を留去して、無色の固体1.3gを得た。この固体をNMRで測定した結果を以下に示す。この結果から、この無色の固体が、中間体化合物(B3)であることが確認された(収率50%)。
1H-NMR(CDCl3) δ: 1.3-1.8(m, 6H), 2.49(t, 2H), 3.88(s, 3H), 3.99(t, 2H), 6.87(d, 2H), 7.99(d, 2H), 9.78(s, 1H).
抽出後の有機層に、無水硫酸マグネシウムを加えて乾燥し、減圧濾過した後の溶液から溶媒を留去し、無色固体1.5gを得た。この固体をNMRで測定した結果を以下に示す。この結果から、この無色固体が、中間体化合物(C3)であることが確認された(収率94%)。
1H-NMR(DMSO-d6) δ: 1.3-1.8(m, 8H), 2.62(m, 1H), 3.04(s, 1H), 3.81(s, 3H), 4.05(t, 2H), 4.54(m, 1H), 5.70(s, 1H), 6.01(s, 1H), 7.03(d, 2H), 7.89(d, 2H).
次に、冷却管付き50mLナスフラスコに、得られた白色固体1.1g、Amberlyst(登録商標)15(ロームエンドハース社)1.0g、及びTHF20.0mLを加えて混合物とし、温度70℃で5時間攪拌して反応させた。反応終了後、反応液を減圧濾過した後の溶液から溶媒を留去し黄色固体を得た。この黄色固体を再結晶(ヘキサン/酢酸エチル=1/1)で精製した後、白色固体0.9gを得た。この固体をNMRで測定した結果を以下に示す。この結果から、この白色固体が、中間体化合物(D3)であることが確認された(収率71%)。
1H-NMR(DMSO-d6) δ: 1.2-1.8(m, 8H), 2.60(m, 1H), 3.09(m, 1H), 4.04(m, 2H), 4.55(m, 1H), 5.69(s, 1H), 6.02(s, 1H), 6.99(d, 2H), 7.88(d, 2H), 12.5(s, broad, 1H).
1H-NMR(CDCl3) δ: 1.40-1.90(m, 8H), 2.58(m, 1H), 3.08(m, 1H), 3.80(s, 3H), 4.05(t, 2H), 4.55(m, 1H), 5.64(s, 1H), 6.22(s, 1H), 6.42(d, 1H), 6.97(d, 2H), 7.22(d, 2H), 7.60(d, 2H), 7.70(d, 1H), 8.15(d, 2H).
重合体(P1)150mg及び化合物(1)(東京化成工業(株)製)7.5mgを、界面活性剤であるR-30N(DIC(株)製)を0.02質量%含むトルエン/シクロヘキサノン(75/25、w/w)0.850gに溶解し、液晶組成物を調製した。
得られた組成物を、ガラス基板にスピンコート(300rpm/5秒、500rpm/20秒)により塗布し、温度55℃のホットプレート上で30秒間プリベークした後、室温まで放冷した。
次に、ガラス基板に形成された塗膜に、直線偏光紫外線を100mJ/cm2(波長313nmで照度測定)垂直に照射した後、ホットプレート上で100℃、15分間ポストベークし、フィルムを得た。得られたフィルムは、膜厚が1.8μmであり、リタデーション値(Δnd)は212nmであり、Δnは0.118であった。
化合物(1)のかわりに化合物(2)を用いた以外は、実施例1と同様の方法で液晶組成物及びフィルムを得た。得られたフィルムは、膜厚が1.9μmであり、リタデーション値は275nmであり、Δnは0.145であった。
化合物(1)のかわりに化合物(3)(東京化成工業(株)製)を用いた以外は、実施例1と同様の方法で液晶組成物及びフィルムを得た。得られたフィルムは、膜厚が1.8μmであり、リタデーション値は235nmであり、Δnは0.127であった。
化合物(1)7.5mgのかわりに化合物(4)(東京化成工業(株)製)3.0mgを用いた以外は、実施例1と同様の方法で液晶組成物及びフィルムを得た。得られたフィルムは、膜厚が1.9μmであり、リタデーション値は211nmであり、Δnは0.111であった。
化合物(1)のかわりに化合物(5)(東京化成工業(株)製)を用いた以外は、実施例1と同様の方法で液晶組成物及びフィルムを得た。得られたフィルムは、膜厚が2.0μmであり、リタデーション値は242nmであり、Δnは0.120であった。
化合物(1)のかわりに化合物(6)を用いた以外は、実施例1と同様の方法で液晶組成物及びフィルムを得た。得られたフィルムは、膜厚が1.8μmであり、リタデーション値は255nmであり、Δnは0.142であった。
化合物(1)のかわりに化合物(7)(ALDRICH社製)を用いた以外は、実施例1と同様の方法で液晶組成物及びフィルムを得た。得られたフィルムは、膜厚が1.8μmであり、リタデーション値は240nmであり、Δnは0.133であった。
化合物(1)のかわりに化合物(8)(ALDRICH社製)を用いた以外は、実施例1と同様の方法で液晶組成物及びフィルムを得た。得られたフィルムは、膜厚が2.0μmであり、リタデーション値は207nmであり、Δnは0.103であった。
化合物(1)のかわりに化合物(9)(和光純薬工業(株)製)を用いた以外は、実施例1と同様の方法で液晶組成物及びフィルムを得た。得られたフィルムは、膜厚が1.7μmであり、リタデーション値は182nmであり、Δnは0.107であった。
重合体(P2)150mg及び化合物(2)7.5mgを、界面活性剤であるR-30(DIC(株)製)を0.02質量%含むトルエン/シクロヘキサノン(75/25、w/w)0.850gに溶解し、液晶組成物を調製した。
得られた組成物を、ガラス基板にスピンコート(300rpm/5秒、900rpm/20秒)により塗布し、温度55℃のホットプレート上で30秒間プリベークした後、室温まで放冷した。
次に、ガラス基板に形成された塗膜に、直線偏光紫外線を100mJ/cm2(波長313nmで照度測定)垂直に照射した後、ホットプレート上で100℃、15分間ポストベークし、フィルムを得た。得られたフィルムは、膜厚が1.7μmであり、リタデーション値(Δnd)は110nmであり、Δnは0.065であった。
重合体(P3)150mg及び化合物(2)7.5mgを、界面活性剤であるR-30(DIC(株)製)を0.02質量%含むシクロヘキサノン0.850gに溶解し、液晶組成物を調製した。
得られた組成物を、ガラス基板にスピンコート(300rpm/5秒、500rpm/20秒)により塗布し、温度55℃のホットプレート上で30秒間プリベークした後、室温まで放冷した。
次に、ガラス基板に形成された塗膜に、直線偏光紫外線を100mJ/cm2(波長313nmで照度測定)垂直に照射した後、ホットプレート上で100℃、15分間ポストベークし、フィルムを得た。得られたフィルムは、膜厚が1.5μmであり、リタデーション値(Δnd)は35nmであり、Δnは0.023であった。
化合物(1)を用いなかった以外は、実施例1と同様の方法で液晶組成物及びフィルムを得た。得られたフィルムは、膜厚が1.8μmであり、リタデーション値は175nmであり、Δnは0.099であった。
化合物(2)を用いなかった以外は、実施例10と同様の方法で液晶組成物及びフィルムを得た。得られたフィルムは、膜厚が1.6μmであり、リタデーション値は87nmであり、Δnは0.054であった。
化合物(2)を用いなかった以外は、実施例11と同様の方法で液晶組成物及びフィルムを得た。得られたフィルムは、膜厚が1.5μmであり、リタデーション値は26nmであり、Δnは0.018であった。
Claims (5)
- (A)下記式[1a]、[1b]及び[1c]で表される繰り返し単位を含む重合体、
(B)下記式[7a]、[7b]又は[7c]で表される液晶性を示さない化合物、及び
(C)有機溶媒
を含む液晶組成物。
M1は、下記式[4]で表される基であり、M2は、下記式[5]又は[6]で表される基であり、
Aは、炭素数2~15の直鎖状又は分岐状のアルキル基であり、
m、n及びpは、それぞれ0<m<1、0<n<1、0≦p≦0.5、かつ、m+n+p≦1を満たす数であり、
q及びrは、それぞれ独立に、2~9の整数である。]
- 請求項1記載の液晶組成物を用いて作製された単層塗布型水平配向フィルム。
- 請求項2記載の単層塗布型水平配向フィルムを備える光学部材。
- 請求項1記載の液晶組成物を基板に塗布する工程、偏光を照射する工程、及びポストベークをする工程を含む、単層塗布型水平配向フィルムの製造方法。
- 前記偏光が、直線偏光紫外線である請求項4記載の単層塗布型水平配向フィルムの製造方法。
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TW201741386A (zh) | 2017-12-01 |
CN108884391A (zh) | 2018-11-23 |
JPWO2017138509A1 (ja) | 2018-12-20 |
KR102727349B1 (ko) | 2024-11-08 |
TWI717463B (zh) | 2021-02-01 |
CN108884391B (zh) | 2022-06-10 |
JP6879219B2 (ja) | 2021-06-02 |
KR20180109968A (ko) | 2018-10-08 |
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