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CN1247873A - A dinuclear cyclopentadiene metal complex catalyst for the preparation of high molecular weight olefin polymers - Google Patents

A dinuclear cyclopentadiene metal complex catalyst for the preparation of high molecular weight olefin polymers Download PDF

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Publication number
CN1247873A
CN1247873A CN 98119815 CN98119815A CN1247873A CN 1247873 A CN1247873 A CN 1247873A CN 98119815 CN98119815 CN 98119815 CN 98119815 A CN98119815 A CN 98119815A CN 1247873 A CN1247873 A CN 1247873A
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metal complex
group
cyclopentadiene
complex according
cyclopentadiene metal
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丁晴
华寿崧
蔡敬诚
王伯萍
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Taiwan Synthetic Rubber Co ltd
Industrial Technology Research Institute ITRI
Chinese Petroleum Corp
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Taiwan Synthetic Rubber Co ltd
Industrial Technology Research Institute ITRI
Chinese Petroleum Corp
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Abstract

The invention discloses a novel dinuclear cyclopentadiene metal complex shown in the formula , wherein M is1、M2、X、Y1、Y2、R1-R10、R16、R17And i and j are as defined in the specification. Using the dinuclear cyclopentadiene metal complex as a catalyst, an olefin polymer having a high molecular weight can be obtained.

Description

A kind of double-core CYCLOPENTADIENYL ORGANOMETALLIC COMPLEES catalyst that is used to prepare the high molecular weight olefin polymkeric substance
The present invention relates to a kind of double-core cyclopentadiene metal (metallocene) title complex of novelty, particularly be suitable for preparing a kind of novel double-core CYCLOPENTADIENYL ORGANOMETALLIC COMPLEES of high molecular weight olefin polymkeric substance.
Olefin polymer is widely used for a long time.Wherein modal a kind of olefin polymer promptly is polyolefine (polyolefins), that is, the homopolymer of alkene or multipolymer.These polyolefin plasticss generally are to be used for blow-molded, ejection formation, extrusion coated, film, binder, pipe fitting, electric wire and cable.
Polyolefinic most of physical properties and mechanical properties, as high strength, high impact resistance, stress, anti-penetration power and high-tenacity are considered at least a portion and are controlled by quite high molecular weight.
A polyolefinic example be ethylene-propylene elastomeric (ethylene-propylene rubber, EPM).Because its weathering resistance is good, thermal ageing property is good, and can mix with a large amount of filler and softening agent, therefore generally is employed industrial.Typical purposes on automotive industry, for example scatterer, heating tube, valve tube, weather proof patch (weather stripping), sponge door envelope (spongedoorseals) or the like.
Another kind of common olefin polymer is the trimer (terpolymer of ethylene, propylene, and a non-conjugateddiene) of ethene, propylene and a non-conjugated diene, so-called EPDM elastomerics or EPDM.The EPDM elastomerics has excellent weathering resistance, acid resistance and high temperature and low temperature usefulness.Such character makes EPDM be especially suitable for use as flexible pipe, packing ring, belt, safety lever, can be used as the fusion composition of plastics and the sidewall of vehicle.In addition, owing to be isolator, EPDM is particularly suitable for the insulation as electric wire and cable.
In order to make EPMs and EPDMs have commercial acceptable character, in general, must meet following condition: the Mooney under 127 ℃ (Mooney) viscosity is greater than 10, weight-average molecular weight is greater than 110,000, the glass tansition temperature is less than-40 ℃, and degree of crystallinity is not more than 25%.
Yet, until today, be 100,000 or littler by resulting EPMs of cyclopentadiene metal catalytic and the common weight-average molecular weight of EPDMs, this does not meet commercial for elastomeric requirement.
Found to have multimodal line (multimodal) in recent years (as bimodal line; Bimodal) molecular weight distribution (molecular weight distribution; MWD) polyolefine has not only kept the high-molecular weight advantage, also can promote its processibility.
Bimodal line MWD polymkeric substance (also can be described as bimodal line polymkeric substance simply) is to be defined as at gel permeation chromatography (gel permeation chromatography; GPC) polymkeric substance that has two molecular weight distribution curves on.That is bimodal line MWD polymkeric substance is the mixture that high-molecular weight polymer and low-molecular weight polymer mix.
Many different researchs provide the polyolefinic method of bimodal line of making.The simplest method for the polymer physics of two different molecular weights mix.But only under the complete fused situation of polymkeric substance, can mix equably.
U.S. Patent number 5,284,613 and 5,338,589 reports prepare bimodal line polyolefine with two stage polymerization process.In the fs, olefin monomer contacts with catalyzer under the polymerization situation, produces high molecular (high molecular weight; HMW) polymkeric substance, wherein this polymer deposition is on granules of catalyst.Second stage, the HMW polymkeric substance that contains catalyzer further with other olefinic monomer polymerization, produce lower (LMW) polymkeric substance of molecular weight, this polymer deposition on by HMW polymkeric substance/granules of catalyst that the fs obtained or within.The shortcoming of this dual stage process is to need two reactors in the reaction process, so Financial cost can be very high.
U.S. Patent number 5,369, a kind of polyolefinic method of bimodal line that in single reaction vessel, prepares of 194 reports.Employed catalyst system capable comprises that two different transition metal catalyst are stated from the same solid carrier substance.Thereby high-molecular weight polymer all can form on identical catalyst grains with low-molecular weight polymer.The shortcoming of this method is that preparation is stated from the suitable complexity of process and the difficulty height of the solid carrier material of two different catalyst.Moreover, two kinds of catalyst have active condition may and different, therefore, when a catalyst was activated, another catalyst may not had an activity.
The present invention's purpose is to solve the above problems, and a kind of double-core CYCLOPENTADIENYL ORGANOMETALLIC COMPLEES of novelty is provided, and it can be used for preparing the high-molecular weight olefin polymer.In addition, because two different catalytic sites are arranged on independent CYCLOPENTADIENYL ORGANOMETALLIC COMPLEES catalyst, therefore, can use independent a kind of catalyst, in single reactor, and olefinic monomer is aggregated into bimodal line olefin polymer, and the catalytic activity of this catalyst is suitable with commercial catalyst.
In order to reach above-mentioned purpose, the invention provides double-core cyclopentadiene metal (metallocene) title complex of a kind of following formula (I):
Figure A9811981500101
In the formula
M 1And M 2Can be identical or different, and be independently selected from IIIB family, the transitional metal of IVB family and VB family,
Each X can be identical or different, and the anion ligand of-1 valency for to have independently, and it is selected from H, C 1-20Alkyl, halogen, C 1-20Alkoxyl group, C 1-20Aryloxy (aryloxy), NH 2, NHR 11, NR 11R 12The NH of ,-(C=O) 2The NHR of ,-(C=O) 13And-(C=O) NR 13R 14, R wherein 11, R 12, R 13And R 14Be C 1-20Alkyl,
I is 1 to 3 integer,
J is 1 to 3 integer,
R 1, R 2, R 3, R 4, R 5, R 6, R 7And R 8Can be identical or different, and be H independently, C 1-20Straight chain, side chain or cyclic hydrocarbon group, or C 2-4Ring-type alkylene (hydrocarbylene), and form C 4-6The condensed ring system,
Y 1And Y 2Can be identical or different, and be the electron-donating group of the 15th family or the 16th family's element independently,
R 9And R 10Can be identical or different, and be (C (R 15) 2-) P, (Z (R 15) 2-) POr (Z (R 15) 2-C (R 15) 2-) PDivalent group, Z is silicon, germanium or tin, wherein R 15Be C 1-6Alkyl, p are 1 to 4 integer,
R 16Be not replacing or cyclic alkylidene (alkylene) that alkyl replaces of divalence, and
Each R 17Be C independently 1-20Straight chain, side chain or cyclic alkyl.
Fig. 1 shows the GPC figure of embodiment 9 products therefroms, and the expression resulting polymers is the ethylene/propylene polymers of bimodal line.
The present invention relates to a kind of double-core CYCLOPENTADIENYL ORGANOMETALLIC COMPLEES of novelty, and a kind of catalyst composition that comprises this novel double-core CYCLOPENTADIENYL ORGANOMETALLIC COMPLEES and activation accelerator. Particularly, the present invention relates in the presence of the novel double-core CYCLOPENTADIENYL ORGANOMETALLIC COMPLEES of catalytic amount, prepare the method for high molecular weight olefin polymer.
M 1And M2Can be identical or different, and M1And M2Be independently selected from scandium, yttrium, lanthanide series, and titanium, zirconium, hafnium, vanadium, niobium and tantalum. Best, M1And M2Be independently selected from titanium, zirconium and hafnium. Work as M1And M2Can be titanium when identical.
X can be identical or different, and the anion ligand of-1 valency for to have independently. X is preferably and is selected from H, C1-20Alkyl, halogen, C1-20Alkoxyl, C1-20Aryloxy group (aryloxy) ,-(C=O) NH2、-(C=O)NHR 13And-(C=O) NR13R 14, R wherein13And R14C1-20Alkyl, preferred X is halogen.
About i and j, preferably i+2 equals M1Oxidation number, preferred i is 2, M1Be titanium, and j+2 equals M2Oxidation number, preferred j is 2, M2Be titanium.
About the substituting group of cyclopentadiene, R1、R 2、R 3、R 4、R 5、R 6、R 7And R8Can be identical or different, and be H or C independently1-20Straight chain, side chain or cyclic hydrocarbon group perhaps are C2-4Ring-type alkylene (hydrocarbylene group), and form C4-6Carbocyclic fused ring system.
In details of the words, C1-20Straight chain, side chain or cyclic hydrocarbon group can be C1-20Alkyl, C1-20Thiazolinyl, C6-20Aryl, C7-20Alkaryl or C7-20Aralkyl. Concrete example comprises H, methyl, ethyl, propyl group, butyl, isobutyl group, amyl group, isopentyl, hexyl, 2-ethylhexyl, heptyl, octyl group, vinyl, pi-allyl, isopropenyl, phenyl and tolyl.
In details of the words, can form C4-6The C of carbocyclic fused ring system2-4The ring-type alkylene can be C2-4Cyclic alkylidene (alkylene group). In some cases, R1、R 2、R 3And R4In at least one is C2-4Cyclic alkylidene and form C4-6Carbocyclic fused ring system. For example, work as R1、R 2、R 3And R4In one of be butylidene when to form a carbon number be six carbocyclic fused ring system, so can form indenyl (indenyl) with cyclopentadiene. Work as R1、R 2、R 3And R4In two be butylidene when to form two carbon numbers be six carbocyclic fused ring system, so can form fluorenyl (fluorenyl) with cyclopentadiene.
Similarly, in some cases, R5、R 6、R 7And R8In at least one is C2-4Cyclic alkylidene and form C4-6Carbocyclic fused ring system. For example, work as R5、R 6、R 7And R8In one of be butylidene when to form a carbon number be six carbocyclic fused ring system, so form indenyl with cyclopentadiene, work as R5、R 6、R 7And R8In two be butylidene when to form two carbon numbers be six carbocyclic fused ring system, so form fluorenyl with cyclopentadiene.
C 5R 1R 2R 3R 4And C5R 5R 6R 7R 8Object lesson comprise η5-cyclopentadienyl group, η5-methyl cyclopentadienyl, η5The tetramethyl-ring pentadienyl, η5-n-butyl cyclopentadienyl, indenyl, tetrahydro indenyl, fluorenyl and octahydrofluorenyl etc.
In formula (I), Y1And Y2Can be identical or different, be an electron-donating group, it is the 15th family or the 16th family's element independently. Concrete example comprises nitrogen, phosphorus, arsenic, antimony, oxygen, sulphur and selenium, is preferably nitrogen or phosphorus.
R 9And R10Can be identical or different, be divalent group, it is selected from (C (R15) 2-) P、(-Z(R 15) 2-) POr (Z (R15) 2-C(R 15) 2-) P Z is silicon, germanium or tin, preferably silicon. R15C1-6Alkyl. P is 1 to 4 integer.
R 9And R10Object lesson comprise dimethylated methylene base (dimethylmethylene) and dimethyl silicylene (dimethylsilanylene).
R 16Be not replacing or cyclic alkylidene that alkyl replaces of divalence, the preferably is the not replacement or the C of divalence 1-10The C that alkyl replaces 5-12Cyclic alkylidene, better person is the not replacement or the C of divalence 1-10The cyclohexylene (cyclohexylene group) that alkyl replaces.R 16An object lesson be
The invention still further relates to a kind of catalyst composition that is used to prepare the double-core CYCLOPENTADIENYL ORGANOMETALLIC COMPLEES of olefin polymer, it comprises:
(a) the CYCLOPENTADIENYL ORGANOMETALLIC COMPLEES catalyst of formula (I), and
(b) activation accelerator, this activation accelerator can be aikyiaiurnirsoxan beta (methyl aluminoxane; MAO), trialkylaluminium, aluminum dialkyl monohalide (a dialkyl aluminum halide), inertia and non-coordination anion salt, or its mixture.
Trialkylaluminium is selected from trimethyl aluminium, triethyl aluminum, tri-propyl aluminum, triisopropylaluminiuand, tri-butyl aluminum and triisobutyl aluminium (TIBA).
The non-coordination anion of this inertia can be borate.Be suitable for borate of the present invention and comprise N, N-dimethyl puratized agricultural spray four (pentafluorophenyl group) borate (N, N-dimethyl anilinium tetrakis (pentafluorophenyl) borate), triphen carbene four (pentafluorophenyl group) borate (triphenyl carbenium tetrakis (pentafluorophenyl) borate), trimethyl ammonium four (pentafluorophenyl group) borate (trimethyl ammonium tetrakis (pentafluorophenyl) borate), ferrocene four (pentafluorophenyl group) borate (ferrocenium tetrakis (pentafluorophenyl) borate), dimethyl four (pentafluorophenyl group) borate (dimethyl tetrakis (pentafluorophenyl) borate).
The activatory accelerator is preferably the mixture of aikyiaiurnirsoxan beta or trialkylaluminium and borate.
Use catalyst composition of the present invention (comprising novel double-core CYCLOPENTADIENYL ORGANOMETALLIC COMPLEES and activation accelerator), can synthesize olefin polymer.In the presence of the CYCLOPENTADIENYL ORGANOMETALLIC COMPLEES of the present invention of catalytically effective amount, and under the polymeric condition, can make at least one olefinic monomer carry out polymerization, maybe can make at least one olefinic monomer and other monomer carry out polymerization.
Suitable olefinic monomer can be ethene, or alpha-olefin.Can be Alathon by the polymkeric substance that method for making of the present invention obtained, alpha-olefin homo, alpha-olefin copolymer, and ethene and alpha-olefin copolymer.Alpha-olefin comprises the alkene of 3 to 12 carbon atoms, as 1-propylene, 1-butylene, 1-amylene, 1-hexene and 1-octene.The alpha-olefin that wherein can be ethene and 3 to 12 carbon atoms of at least one tool carries out copolymerization, also can two or the alpha-olefin of 3 to 12 carbon atoms of a plurality of tool carry out equal polymerization or copolymerization.
More particularly, catalyst system capable of the present invention is particularly useful for making Alathon, comprises the high density polyethylene(HDPE) (HDPE) of tool wide molecular weight distribution, multimodal line or bimodal line molecular weight distribution, and it can be applicable to high molecular weight film and blow molding.
In addition, specifically, catalyst system capable of the present invention is particularly useful for making multipolymer (a copolymer of ethylene and propylene of ethene and propylene; EPM), and, also be suitable for preparing ethene, C 3-12The multipolymer of alpha-olefin and non-conjugated diene.Particularly, work as C 3-12When alpha-olefin is propylene, can obtain the multipolymer of ethene, propylene and non-conjugated diene, be called EPDM.Suitable non-conjugated diene can be 5-ethylidene-2-norbornene (5-ethylidene-2-norbornene; ENB), 5-methylene-2-norbornene (5-methylene-2-norbornene), 5-vinylidene-2-norbornylene (5-vinylidene-2-norbornene), 1, the 4-hexadiene (1,4-hexadiene; Or Dicyclopentadiene (DCPD) (dicyclopentadiene HD); DCPD).
Polyreaction of the present invention also can be carried out in the presence of hydrogen and catalyst composition common.So the molecular weight of polymkeric substance can control to required scope on demand and in addition.
Catalyst system capable of the present invention is applicable to the paste-like reaction conditions, gas phase and solution polymerization condition.Polyreaction and is pressed onto 3 in an atmosphere usually under 0 ℃ to 250 ℃ temperature, carries out between the 000psi.
The most important advantage of the present invention is use novel double-core CYCLOPENTADIENYL ORGANOMETALLIC COMPLEES as catalyst, but synthetic molecular weight to be higher than 200,000 olefin polymer.And when using traditional cyclopentadiene metal, the molecular weight of resulting olefin polymer can only reach about 100,000.
In addition, because cyclopentadiene metal of the present invention is a double-core, that is, two metal centers are arranged, near the chemical environment these two metal centers is also inequality, so, in independent cyclopentadiene metal, two different catalytic sites are arranged.Therefore, by using such double-core cyclopentadiene metal, can obtain the olefin polymer of bimodal line as catalyst.
Illustrate further method of the present invention, feature and advantage by following examples.
The synthetic embodiment 1 of cyclopentadiene metal
Figure A9811981500161
1, (1,8-diamino-p-menthane) (7.37g, 30.3mmole, purity 70-75%) places the 300mL round-bottomed bottle to 8-diamino-p- alkane, with the 150mL ether dissolution.This yellow solution is cooled to-78 ℃, injects 2 equivalent 1.6M n-Butyl Lithiums (n-BuLi) with syringe then.This mixture is risen again to room temperature and stirring overnight.Obtain 6.8 gram dilithium salts (dilithiumsalt) after the filtration, it is a white solid.
Embodiment 2
Figure A9811981500162
With embodiment 1 resulting dilithium salt (1.97g, 10.8mmole) (4.65g 21.67mmole) is dissolved in respectively among the THF of 50mL and 20mL with the silica-based chlorine of tetramethyl-ring pentadienyl dimethyl (tetramethylcyclopentadienyl-dimethylsilylchloride).This two solution is merged under room temperature.Mixture stirring overnight.This yellow mixture drained be heavy-gravity oily matter to extract again with 40mL toluene.Remove by filter the LiCl solid, filtrate drained once more, obtain xanchromatic oily matter (5.6g, 10.63mmole).
Embodiment 3
Figure A9811981500171
(5.6g 10.63mole) is dissolved among the 100mL THF, to obtain yellow solution with the ligand of embodiment 2 gained.This solution is cooled to-78 ℃, adds 4 equivalent 1.6Mn-BuLi (42.5mmole) with syringe again.This light brown solution mixture is slowly risen again to room temperature, to color transition be the tangerine look.After the stirring overnight, mixture is drained to about 10mL, added the toluene of 20mL and the pentane of 20mL then.Filter this mixture, collect 5.1 grams, four lithium salts, it is a white solid.
Embodiment 4
Figure A9811981500181
(3.0g, 5.45mmole) THF with 30mL dissolves fully with four lithium salts of embodiment 3 gained.With two equivalent TiCl 3(thf) 3(4.03g 10.9mmole) is suspended among the THF.This two solution is cooled to-30 ℃, combines then.This mixture was stirred 3 hours, add 2.5 gram AgCl (excessive) again.Reaction mixture becomes black soon, and becomes when stirring overnight slightly redly.This mixture is drained, extracted with 35mL toluene again.Remove by filter any insolubles, reddish-brown filtrate is concentrated into small volume.This concentrated filtrate through fractional crystallization (fractionalcrystallization), is restrained final product and obtain 0.5, and it is the light brown solid.
Synthesizing of polymkeric substance
Synthetic EPM (ethylene propylene rubber)
Embodiment 5
The reactive tank temperature is risen to 105 ℃, and, vacuumized about 2 hours, all valve closess by after the nitrogen purging 5 minutes.500mL toluene is pressed in the reactive tank with nitrogen, and temperature of reactor is kept 80 ℃ of desired reaction temperatures.After treating temperature-stable, with 8mL (1.2 * 10 -2Mole) MAO (being dissolved in toluene) adds in the reactive tank, and stirs.After treating 5 minutes, add 2mL (4 * 16 -6Mole) 4 winner's catalyst of embodiment, and stir.After stirring 1 minute under 80 ℃, with volume ratio 40/50 blended ethene and propylene monomer, add in the reactive tank in level pressure (100psi) mode, with this moment the time opening.
Reaction times to be reached, solution is poured out, after the cooling, add methyl alcohol product is precipitated out.The product oven dry is handled, for physical property measurement, and weighing, calculated activity.The result is as shown in table 1.
Embodiment 6-11
Step is with embodiment 5, but change temperature of reaction, reactant ratio (ethylene/propene, E/P) or reaction pressure.The result is as shown in table 1.
Fig. 1 shows the GPC figure of embodiment 9 products therefroms, and the expression resulting polymers is the ethylene/propylene polymers of bimodal line.
Table 1
Embodiment Reaction conditions Active (* 10 4g/g -metal-hr) Product characteristics
Temperature (℃) The E/P volume ratio Pressure (psi) ??Tm ?(℃) The E/P mol ratio ??Mw ??MWD
????5 ??80 40/50 ??100 ????4.22 -47.8 ?68/32 394,468 ??4.6
????6 ??100 40/50 ??100 ????4.07 -48.2 ?68/32 292,923 ??2.7
????7 ??120 40/50 ??100 ????3.64 -47.5 ?70/30 249,935 ??5.9
????8 ??80 50/50 ??100 ????3.12 -47.3 ?68/32 519,131 ??3.7
????9 ??80 40/60 ??100 ????2.37 -48.3 ?68/32 190,826 ??6.00
????10 ??100 40/50 ??80 ????3.62 -45 ?70/30 539,527 ??3.3
????11 ??100 40/50 ??120 ????4.12 -45.1 ?75/25 387,194 ??3.3
Synthetic EPDM (propylene diene rubber)
Embodiment 12
The reactive tank temperature is risen to 105 ℃, and, vacuumized about 2 hours, all valve closess by after the nitrogen purging 5 minutes.500mL toluene is pressed in the reactive tank with nitrogen, and temperature of reactor is kept 80 ℃ of desired reaction temperatures.After treating temperature-stable, with 8mL (1.2 * 10 -2Mole) MAO (being dissolved in toluene) adds in the reactive tank, and stirs.After treating 5 minutes, add 2mL (4 * 10 -6Mole) 4 winner's catalyst of embodiment, and stir.After stirring 5 minutes under 80 ℃, add 10mL 5-ethylidene-2-norbornene (5-ethylidene-2-norbornene; And stir ENB).After 1 minute, will add in the reactive tank in level pressure (100psi) mode with volume ratio 40/50 blended ethene and propylene monomer, be the time opening with this moment.
Reaction times to be reached, solution is poured out, after the cooling, add methyl alcohol generation is precipitated out.The product oven dry is handled, for physical property measurement, and weighing, calculated activity.The result is as shown in table 2.
Embodiment 13
Step is with embodiment 12, but the charge ratio of change ethylene/propene (E/P).The result is as shown in table 2.
Table 2
Embodiment Reaction conditions Active (* 10 4g/g -metal-hr) Product characteristics
Temperature (℃) The E/P volume ratio ENB (mL) Pressure (psi) ??Tm ?(℃) The E/P mol ratio ENB (mole %) ??Mw ??MWD
??5 ??80 ?40/50 ??0 ??100 ????4.22 -47.8 ?68/32 ????0 ?394,468 ??4.6
??12 ??80 ?40/50 ??10 ??100 ????3.06 -31.4 ?79/21 ????1 ?325,050 ??4.32
??13 ??80 ?50/50 ??10 ??100 ????2.4 -49.1 ?79/21 ????1.7 ?499,008 ??2.71
??14 ??80 ?40/50 ??0 ??100 ????3.9 -46.8 ?60/40 ????0 ?339,038 ??4.2
With hydrogen control Mw
Embodiment 14
The reactive tank temperature is risen to 105 ℃, and, vacuumized about 2 hours, all valve closess by after the nitrogen purging 5 minutes.500mL toluene is pressed in the reactive tank with nitrogen, and temperature of reactor is kept 80 ℃ of desired reaction temperatures.After treating temperature-stable, with 8mL (1.2 * 10 -2Mole) MAO (being dissolved in toluene) adds in the reactive tank, and stirs.After treating 5 minutes, add 2mL (4 * 10 -6Mole) 4 winner's catalyst of embodiment, and stir.After stirring 1 minute under 80 ℃, with the 7%H of 7psi 2/ N 2Gas mixture adds reactive tank, and stirs.After treating 1 minute, with volume ratio 40/50 blended ethene and propylene monomer, adding in the reactive tank in level pressure (100psi) mode, is the time opening with this moment.
Reaction times to be reached, solution is poured out, after the cooling, add methyl alcohol product is precipitated out.The product oven dry is handled, for physical property measurement, and weighing, calculated activity.The result is as shown in table 3.
Embodiment 15-17
Step is with embodiment 14, but change H 2/ N 2The pressure of gas.The result is as shown in table 3.
Embodiment 18
The reactive tank temperature is risen to 105 ℃, and after the logical nitrogen purging 5 minutes, vacuumized about 2 hours, all valve closess.500mL toluene is pressed in the reactive tank with nitrogen, and temperature of reactor is kept 80 ℃ of desired reaction temperatures.After treating temperature-stable, with 8mL (1.2 * 10 -2Mole) MAO (being dissolved in toluene) adds in the reactive tank, and stirs.After treating 5 minutes, add 2mL (4 * 10 -6Mole) 4 winner's catalyst of embodiment, and stir.After 5 minutes, add the ENB of 10mL again, and stir.After 1 minute, with the 7%H of 7psi 2/ N 2Gas mixture adds reactive tank, and stirs.After treating 1 minute, with volume ratio 40/50 blended ethene and propylene monomer, adding in the reactive tank in level pressure (100psi) mode, is the time opening with this moment.
Reaction times to be reached, solution is poured out, after the cooling, add methyl alcohol product is precipitated out.The product oven dry is handled, for physical property measurement, and weighing, calculated activity.The result is as shown in table 3.
Table 3
Embodiment Reaction conditions Active (* 10 4g/g -metal-hr) Product characteristics
????ENB ????(mL) Hydrogen (7%) pressure (psi) Tm (℃) The E/P mol ratio ?Mw ????MWD
????14 ????0 ????7 ????3.9 -46.8 ?60/40 ?339,038 ????4.2
????15 ????0 ????14 ????3.8 -46.5 ?53/47 ?237,453 ????3.1
????16 ????0 ????28 ????3.5 -47.2 ?58/42 ?261,720 ????3.6
????17 ????0 ????42 ????3.2 ?57/43 ?155,291 ????3.2
????18 ????10 ????14 ????3.8 -42.2 ?56/44 ?308,596 ????2.4
Temperature of reaction=80 ℃
E/P charge ratio=40/50
Pressure=100psi
The equal polymerization of ethene
Embodiment 19
450mL reactive tank temperature is risen to 105 ℃, and after the logical nitrogen purging 5 minutes, vacuumized about 2 hours, all valve closess.The reactive tank temperature is adjusted to 100 ℃.After treating temperature-stable, add 250mL toluene and 1.49 * 10 -2The 10%MAO solution of mole, and stir.Stir after 5 minutes, add 2 * 10 -6The main catalyst of mole embodiment 4 gained stirred 3 minutes.Ethylene gas is added in the reactive tank in level pressure (150psi) mode, and reaction was carried out 30 minutes.
Reaction times to be reached, solution is poured out, after the cooling, add Virahol so that catalyst and accelerator lose activity.Add methyl alcohol so that product is precipitated out.Filter and in 80 ℃ dry 10 minutes down, to obtain polyethylene product.The result is as shown in table 4.
Embodiment 20-21
Step is with embodiment 19, but the change temperature of reaction.The result is as shown in table 4.
Table 4
Embodiment Temperature of reaction (℃) Active (* 10 4g/g-metal-hr) Product characteristics
??Tm(℃) ?Mw ????MWD
????19 ????80 ????3.6 ????132 ?1,340,673 ????3.1
????20 ????100 ????4.59 ????131 ?521,772 ????5.4
????21 ????120 ????3.83 ????132 ?445,464 ????2.33
The copolymerization of ethene
Embodiment 22
The reactive tank temperature is risen to 105 ℃, and after the logical nitrogen purging 5 minutes, vacuumized about 2 hours, all valve closess.The reactive tank temperature is adjusted to 100 ℃.After treating temperature-stable, add 250mL toluene, 5mL octene-1 and 1.49 * 10 -2The 10%MAO solution of mole, and stir.Stir after 5 minutes, add 2 * 10 -6The main catalyst of mole embodiment 4 gained stirred 3 minutes.Ethylene gas is added in the reactive tank in level pressure (150psi) mode, and reaction was carried out 30 minutes.
Reaction times to be reached, solution is poured out, after the cooling, add Virahol so that catalyst and accelerator lose activity.Add methyl alcohol so that product is precipitated out.Filter and in 80 ℃ dry 10 minutes down, to obtain ethylene/octene.The result is as shown in table 5.
Embodiment 23-25
Step only changes the kind or the consumption of comonomer with embodiment 22.The result is as shown in table 5.
Table 5
Embodiment Temperature of reaction (℃) Comonomer Active (* 10 4g/g-metal-hr) Product characteristics
Tm(℃) ?Mw ?MWD
????20 ??100 ?????- ????4.59 ??131 ?521,772 ?5.4
????22 ??100 ??1-C 8,20mL ????11.2 ??- ?196,904 ?2.75
????23 ??100 ??1-C 8,10mL ????9.44 ??- ?212,650 ?2.6
????24 ??100 ??1-C 8,5mL ????5.61 ??102 ?397,891 ?2.77
????25 ??100 ??1-C 6,5mL ????4,85 ??97 ?355,795 ?3.86
Embodiment 26
With four kinds of commercial EPDMs, Uniroyal 509, and Exxon 8731, DuPont Dow 4520, and DuPont Dow 5750P, and the embodiment of the invention 8 gained EPM carry out various analyses respectively, to compare its working properties.Uniroyal 509 and Exxon 8731 be to use the vanadium of non-cyclopentadiene metal be catalyst catalysis and EPDMs.DuPont Dow 4520 and DuPont Dow5750P are to use how much catalyst (constrained geometry catalyst of restriction; CGC) catalysis that (belongs to monokaryon) and EPDMs.Under 170 ℃, record TC90 (min) expression and use dicumyl peroxide (dicumyl peroxide; DCP) in 170 ℃ of following catalysis, the time that 90% crosslinked polymer is required.Less TC90 represents to have hardening rate faster.
Analytical results is as shown in table 6.By can finding out in the table, by the catalyst gained EPM of novelty of the present invention with compare by traditional catalyst gained EPDMs, catalyst gained EPM of the present invention has 125 ℃ of higher following Mooney viscosity, this mainly is because due to its high molecular.In fact, the Mw of embodiment 8 gained EPM is 519,131 (seeing Table 1).Moreover, and compare by traditional catalyst gained EPDMs, have cross-linked speed faster by the catalyst gained EPM of novelty of the present invention, represent that it has preferable processibility.
Table 6
Sample Ethene amount (%) ENB measures (%) Mooney is under 125 ℃ ??Tm ??(℃) TC90 (min) DCP is under 170 ℃
Uniroyal?509 ????70 ????9 ????56 -46.2 ????7.94
Exxon?8731 ????75 ????3 ????26 -41.3 ????8.63
DuPont-Dow?4520 ????51 ????5 ????20 -53.6 ????9.52
DuPont-Dow?5750P ????69 ????9 ????50 -36.6 ????9.66
EPM by the embodiment of the invention 8 gained ????68 ????-- ????100 -47.3 ????5.1
Though the present invention with preferred embodiment openly as above; yet it is not in order to restriction the present invention, any person skilled in the art, without departing from the spirit and scope of the present invention; can do some improvement and variation, it all belongs within protection scope of the present invention.

Claims (44)

1.一种下述式(I)的双核环戊二烯金属配合物: 1. A dinuclear cyclopentadiene metal complex of the following formula (I): 式中M1和M2可相同或不同,且独立地选自第IIIB族、第IVB族和第VB族过渡性金属,每个X可相同或不同,且独立地为具有-1价的阴离子配位体,其选自H、C1-20烃基、卤素、C1-20烷氧基、C1-20芳氧基、NH2、NHR11、NR11R12、-(C=O)NH2、-(C=O)NHR13以及-(C=O)NR13R14,其中R11、R12、R13和R14是C1-20烷基,In the formula, M and M can be the same or different, and are independently selected from Group IIIB, Group IVB, and Group VB transition metals, each X can be the same or different, and are independently an anion having a valence of -1 A ligand selected from H, C 1-20 hydrocarbon group, halogen, C 1-20 alkoxy group, C 1-20 aryloxy group, NH 2 , NHR 11 , NR 11 R 12 , -(C=O) NH 2 , -(C=O)NHR 13 and -(C=O)NR 13 R 14 , wherein R 11 , R 12 , R 13 and R 14 are C 1-20 alkyl, i是1至3的整数,i is an integer from 1 to 3, j是1至3的整数,j is an integer from 1 to 3, R1、R2、R3、R4、R5、R6、R7和R8可相同或不同,且独立地为H,C1-20直链、支链或环状烃基,或C2-4环状亚烃基,而形成C4-6的稠环系统,R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 and R 8 may be the same or different, and are independently H, C 1-20 straight chain, branched chain or cyclic hydrocarbon group, or C 2-4 cyclic alkylene, and form a C 4-6 fused ring system, Y1和Y2可相同或不同,且独立地为第15族或第16族元素的供电子基团,Y and Y may be the same or different, and are independently electron-donating groups of Group 15 or Group 16 elements, R9和R10可相同或不同,且为(-C(R15)2-)P、(-Z(R15)2-)P或(-Z(R15)2-C(R15)2-)P的二价基团,Z为硅、锗或锡,其中R15为C1-6烷基,p为1至4的整数,R16为二价的未取代或烷基取代的环状亚烷基,以及R 9 and R 10 may be the same or different, and are (-C(R 15 ) 2 -) P , (-Z(R 15 ) 2 -) P or (-Z(R 15 ) 2 -C(R 15 ) 2- ) A divalent group of P , Z is silicon, germanium or tin, wherein R 15 is a C 1-6 alkyl group, p is an integer from 1 to 4, and R 16 is a divalent unsubstituted or alkyl substituted Cyclic alkylene, and 每个R17独立地为C1-20直链、支链、或环状烃基。Each R 17 is independently a C 1-20 straight chain, branched chain, or cyclic hydrocarbon group. 2.根据权利要求1所述的环戊二烯金属配合物,其中M1和M2独立地选自钪、钇、镧系元素,以及钛、锆、铪、钒、铌和钽。2. The cyclopentadiene metal complex according to claim 1, wherein M1 and M2 are independently selected from scandium, yttrium, lanthanides, and titanium, zirconium, hafnium, vanadium, niobium and tantalum. 3.根据权利要求1所述的环戊二烯金属配合物,其中M1和M2独立地选自钛、锆和铪。3. The cyclopentadiene metal complex according to claim 1, wherein M1 and M2 are independently selected from titanium, zirconium and hafnium. 4.根据权利要求1所述的环戊二烯金属配合物,其中M1和M2是相同的。4. The cyclopentadiene metal complex of claim 1, wherein M1 and M2 are the same. 5.根据权利要求4所述的环戊二烯金属配合物,其中M1和M2是钛。5. The cyclopentadiene metal complex of claim 4, wherein M1 and M2 are titanium. 6.根据权利要求1所述的环戊二烯金属配合物,其中X选自H、C1-20烃基、卤素、C1-20烷氧基、C1-20芳氧基、-(C=O)NH2,-(C=O)NHR13以及-(C=O)NR13R14,其中R13和R14是C1-20烷基。6. cyclopentadiene metal complex according to claim 1, wherein X is selected from H, C 1-20 hydrocarbon group, halogen, C 1-20 alkoxy group, C 1-20 aryloxy group, -(C =O)NH 2 , -(C=O)NHR 13 and -(C=O)NR 13 R 14 , wherein R 13 and R 14 are C 1-20 alkyl. 7.根据权利要求1所述的环戊二烯金属配合物,其中X为卤素。7. The cyclopentadiene metal complex according to claim 1, wherein X is a halogen. 8.根据权利要求1所述的环戊二烯金属配合物,其中i+2等于M1的氧化数。8. The cyclopentadiene metal complex according to claim 1, wherein i+2 is equal to the oxidation number of M 1 . 9.根据权利要求8所述的环戊二烯金属配合物,其中i为2,M1为钛。9. The cyclopentadiene metal complex according to claim 8, wherein i is 2 and M 1 is titanium. 10.根据权利要求1所述的环戊二烯金属配合物,其中j+2等于M2的氧化数。10. The cyclopentadiene metal complex of claim 1, wherein j+2 is equal to the oxidation number of M2 . 11.根据权利要求10所述的环戊二烯金属配合物,其中j为2,M2为钛。11. The cyclopentadiene metal complex according to claim 10, wherein j is 2 and M2 is titanium. 12.根据权利要求1所述的环戊二烯金属配合物,其中R1、R2、R3、R4、R5、R6、R7和R8可相同或不同,且独立地为H或C1-20直链、支链或环状烃基,C1-20烃基为C1-20烷基、C1-20烯基、C6-20芳基、C7-20烷芳基或C7-20芳烷基。12. The cyclopentadiene metal complex according to claim 1, wherein R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 and R 8 can be the same or different, and are independently H or C 1-20 straight chain, branched or cyclic hydrocarbon group, C 1-20 hydrocarbon group is C 1-20 alkyl, C 1-20 alkenyl, C 6-20 aryl, C 7-20 alkaryl Or C 7-20 aralkyl. 13.根据权利要求12所述的环戊二烯金属配合物,其中R1、R2、R3、R4、R5、R6、R7和R8可相同或不同,且独立地为H、甲基、乙基、丙基、丁基、异丁基、戊基、异戊基、己基、2-乙基己基、庚基、辛基、乙烯基、烯丙基、异丙烯基、苯基或甲苯基。13. The cyclopentadiene metal complex according to claim 12, wherein R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 and R 8 can be the same or different, and are independently H, methyl, ethyl, propyl, butyl, isobutyl, pentyl, isopentyl, hexyl, 2-ethylhexyl, heptyl, octyl, vinyl, allyl, isopropenyl, Phenyl or tolyl. 14.根据权利要求1所述的环戊二烯金属配合物,其中R1、R2、R3和R4中至少一个为C4-6的稠环系统。14. The cyclopentadiene metal complex according to claim 1, wherein at least one of R 1 , R 2 , R 3 and R 4 is a C 4-6 fused ring system. 15.根据权利要求14所述的环戊二烯金属配合物,其中R1、R2、R3、R4中之一为亚丁基而形成一个碳数为六的稠环系统,并与环戊二烯一起形成茚基。15. The cyclopentadiene metal complex according to claim 14, wherein one of R 1 , R 2 , R 3 , and R 4 is a butylene group to form a condensed ring system with six carbons, and the Pentadiene together form indenyl. 16.根据权利要求14所述的环戊二烯金属配合物,其中R1、R2、R3和R4中之二为亚丁基而形成两个碳数为六的稠环系统,并与环戊二烯一起形成芴基。16. The cyclopentadiene metal complex according to claim 14, wherein two of R 1 , R 2 , R 3 and R 4 are butylene to form two condensed ring systems with six carbons, and with Cyclopentadiene together form a fluorenyl group. 17.根据权利要求1所述的环戊二烯金属配合物,其中R5、R6、R7和R8中至少一个为C2-4环状亚烷基而形成C4-6的稠环系统。17. The cyclopentadiene metal complex according to claim 1, wherein at least one of R 5 , R 6 , R 7 and R 8 is a C 2-4 cyclic alkylene group to form a C 4-6 condensed ring system. 18.根据权利要求17所述的环戊二烯金属配合物,其中R5、R6、R7和R8中之一为亚丁基而形成一个碳数为六的稠环系统,并与环戊二烯一起形成茚基。18. The cyclopentadiene metal complex according to claim 17, wherein one of R 5 , R 6 , R 7 and R 8 is a butylene group to form a condensed ring system with six carbons, and the ring Pentadiene together form indenyl. 19.根据权利要求17所述的环戊二烯金属配合物,其中R5、R6、R7和R8中之二为亚丁基而形成两个碳数为六的稠环系统,并与环戊二烯一起形成芴基。19. The cyclopentadiene metal complex according to claim 17, wherein two of R 5 , R 6 , R 7 and R 8 are butylene to form two condensed ring systems with six carbons, and Cyclopentadiene together form a fluorenyl group. 20.根据权利要求1所述的环戊二烯金属配合物,其中C5R1R2R3R4和C5R5R6R7R8选自η5-环戊二烯基,η5-甲基环戊二烯基,η5-四甲基环戊二烯基,η5-正丁基环戊二烯基,茚基,四氢茚基,芴基,及八氢芴基。20. The cyclopentadiene metal complex according to claim 1, wherein C 5 R 1 R 2 R 3 R 4 and C 5 R 5 R 6 R 7 R 8 are selected from n 5 -cyclopentadienyl, η 5 -methylcyclopentadienyl, η 5 -tetramethylcyclopentadienyl, η 5 -n-butylcyclopentadienyl, indenyl, tetrahydroindenyl, fluorenyl, and octahydrofluorenyl. 21.根据权利要求1所述的环戊二烯金属配合物,其中Y1和Y2独立地选自氮、磷、砷、锑、氧、硫和硒。21. The cyclopentadiene metal complex of claim 1, wherein Y1 and Y2 are independently selected from nitrogen, phosphorus, arsenic, antimony, oxygen, sulfur and selenium. 22.根据权利要求21所述的环戊二烯金属配合物,其中Y1和Y2独立地为氮或磷。22. The cyclopentadiene metal complex of claim 21, wherein Y1 and Y2 are independently nitrogen or phosphorus. 23.根据权利要求1所述的环戊二烯金属配合物,其中Z为硅。23. The cyclopentadiene metal complex of claim 1, wherein Z is silicon. 24.根据权利要求1所述的环戊二烯金属配合物,其中R9和R10为二价基团,为二甲基亚甲基或二甲基亚硅烷基。24. The cyclopentadiene metal complex according to claim 1, wherein R 9 and R 10 are divalent groups, which are dimethylmethylene or dimethylsilylene. 25.根据权利要求1所述的环戊二烯金属配合物,其中R16为二价的未取代或C1-10烷基取代的C5-12环状亚烷基。25. The cyclopentadiene metal complex according to claim 1, wherein R 16 is a divalent unsubstituted or C 1-10 alkyl substituted C 5-12 cyclic alkylene. 26.根据权利要求25所述的环戊二烯金属配合物,其中R16为二价的未取代或C1-10烷基取代的环状亚己基。26. The cyclopentadiene metal complex according to claim 25, wherein R 16 is a divalent unsubstituted or C 1-10 alkyl substituted cyclic hexylene group. 27.根据权利要求26所述的环戊二烯金属配合物,其中R16 27. The cyclopentadiene metal complex according to claim 26, wherein R 16 is 28.一种用于制备烯烃聚合物的双核环戊二烯金属配合物的触媒组合物,其包括:28. A catalyst composition for the preparation of dinuclear cyclopentadiene metal complexes of olefin polymers, comprising: (a)权利要求1所述式(I)环戊二烯金属配合物触媒;以及(a) formula (I) cyclopentadiene metal complex catalyst described in claim 1; And (b)活化助触媒,其选自铝氧烷、三烷基铝、卤化二烷基铝,惰性和非配位阴离子盐类,及其混合物。(b) Activating co-catalysts selected from the group consisting of aluminoxanes, trialkylaluminums, dialkylaluminum halides, inert and non-coordinating anionic salts, and mixtures thereof. 29.根据权利要求28所述的触媒组合物,其中所述的三烷基铝选自三甲基铝、三乙基铝、三丙基铝、三异丙基铝、三丁基铝和三异丁基铝。29. The catalyst composition according to claim 28, wherein said trialkylaluminum is selected from the group consisting of trimethylaluminum, triethylaluminum, tripropylaluminum, triisopropylaluminum, tributylaluminum and tributylaluminum. Aluminum isobutyl. 30.根据权利要求28所述的触媒组合物,其中所述的惰性和非配位阴离子为硼酸盐。30. The catalyst composition of claim 28, wherein said inert and non-coordinating anion is borate. 31.根据权利要求30所述的触媒组合物,其中所述的硼酸盐选自N,N-二甲基苯铵四(五氟苯基)硼酸盐、三苯碳烯四(五氟苯基)硼酸盐、三甲基铵(五氟苯基)硼酸盐、二茂铁四(五氟苯基)硼酸盐、二甲基四(五氟苯基)硼酸盐及银四(五氟苯基)硼酸盐。31. The catalyst composition according to claim 30, wherein said borate is selected from the group consisting of N, N-dimethylanilinium tetrakis (pentafluorophenyl) borate, triphenylcarbene tetrakis (pentafluorophenyl) Phenyl)borate, trimethylammonium(pentafluorophenyl)borate, ferrocenetetrakis(pentafluorophenyl)borate, dimethyltetrakis(pentafluorophenyl)borate and silver Tetrakis(pentafluorophenyl)borate. 32.根据权利要求28所述的触媒组合物,其中所述的活化助触媒为铝氧烷。32. The catalyst composition of claim 28, wherein the activating co-catalyst is an aluminoxane. 33.根据权利要求28所述的触媒组合物,其中所述的活化助触媒为三烷基铝和硼酸盐的混合物。33. The catalyst composition of claim 28, wherein the activating cocatalyst is a mixture of trialkylaluminum and borate. 34.一种制备烯烃聚合物的方法,其包括在催化有效量的权利要求28所述的触媒组合物存在下,进行至少一个烯烃单体的聚合作用,或进行至少一个烯烃单体与其他非烯烃单体的聚合作用。34. A method for the preparation of olefin polymers, comprising polymerizing at least one olefin monomer, or carrying out at least one olefin monomer with other non- Polymerization of olefin monomers. 35.根据权利要求34所述的方法,其中以乙烯进行均聚合。35. The method of claim 34, wherein the homopolymerization is carried out with ethylene. 36.根据权利要求34所述的方法,其中乙烯与至少一个具3至12个碳原子的α-烯烃进行共聚合。36. The method of claim 34, wherein ethylene is copolymerized with at least one alpha-olefin having 3 to 12 carbon atoms. 37.根据权利要求36所述的方法,其中乙烯与丙烯进行共聚合。37. The method of claim 36, wherein ethylene is copolymerized with propylene. 38.根据权利要求36所述的方法,其中乙烯与己烯进行共聚合。38. The method of claim 36, wherein ethylene is copolymerized with hexene. 39.根据权利要求36所述的方法,其中乙烯与辛烯进行共聚合。39. The method of claim 36, wherein ethylene is copolymerized with octene. 40.根据权利要求34所述之方法,其中以具3至12个碳原子的α-烯烃进行均聚合。40. The method of claim 34, wherein the homopolymerization is carried out with alpha-olefins having 3 to 12 carbon atoms. 41.根据权利要求34所述的方法,其中以二或多个具3至12个碳原子的α-烯烃进行共聚合。41. The method of claim 34, wherein the copolymerization is carried out with two or more alpha-olefins having 3 to 12 carbon atoms. 42.根据权利要求34所述的方法,其中乙烯、一C3-12α-烯烃及非共轭二烯进行共聚合。42. The method of claim 34, wherein ethylene, a C 3-12 α-olefin and a non-conjugated diene are copolymerized. 43.根据权利要求42所述的方法,其中所述的该非共轭二烯选自5-亚乙基-2-降冰片烯、5-亚甲基-2-降冰片烯、5-亚乙烯基-2-降冰片烯、1,4-己二烯及二环戊二烯。43. The method according to claim 42, wherein said non-conjugated diene is selected from the group consisting of 5-ethylidene-2-norbornene, 5-methylene-2-norbornene, 5-ethylene Vinyl-2-norbornene, 1,4-hexadiene and dicyclopentadiene. 44.根据权利要求34所述的方法,其中该聚合反应是在氢气的存在下进行的。44. The method of claim 34, wherein the polymerization reaction is performed in the presence of hydrogen.
CN 98119815 1998-09-16 1998-09-16 A dinuclear cyclopentadiene metal complex catalyst for the preparation of high molecular weight olefin polymers Pending CN1247873A (en)

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