CN107098992B - Cyclic annular multicore salicylic alidehyde imine nickel-metal catalyst precursor and its preparation and application - Google Patents

Cyclic annular multicore salicylic alidehyde imine nickel-metal catalyst precursor and its preparation and application Download PDF

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CN107098992B
CN107098992B CN201710337580.7A CN201710337580A CN107098992B CN 107098992 B CN107098992 B CN 107098992B CN 201710337580 A CN201710337580 A CN 201710337580A CN 107098992 B CN107098992 B CN 107098992B
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马玉国
陈忠涛
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Peking University
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Abstract

Multicore nickel-metal catalyst precursor (shown in formula I) the invention discloses one kind based on cyclic annular salicylaldimine ligand, and preparation method thereof and application in olefin polymerization.The catalyst precarsor and three (phenyl-pentafluoride) borines or bis- (1,5- cyclo-octadiene) caltalyst of nickel composition shows high thermal stability when tying up to vinyl polymerization, obtain the polyethylene of high molecular weight, reduced branching degree, and region and the stereocpecificity polymerization that propylene is realized within the scope of mild temperature, obtain dystectic crystallinity isotatic polypropylene.

Description

Cyclic annular multicore salicylic alidehyde imine nickel-metal catalyst precursor and its preparation and application
Technical field
The invention belongs to olefin coordination polymerization field, be related to a kind of cyclic annular multicore nickel-metal catalyst precursor synthesis and by Its application of catalyst formed in terms of catalysis in olefine polymerization.
Background technique
Polyolefin is the maximum a kind of high molecular material of current production rate, due to its abundant raw material, cheap, easy processing at The advantages that type, has a wide range of applications in real life.Polyolefin has lesser density, good mechanical strength, electricity absolutely The features such as edge and chemical resistance, can be used for making tubing, film, all kinds of moulded products etc., be widely used in its people Economic every field, also plays great function on the Strategic projects such as the energy and national defence.
It is promoted using Ziegler-Natta catalyst and metallocene catalyst as the Catalysts for Olefin Polymerization of representative poly- Alkene industry flourishes.Nowadays, rear transition non-metallocene catalyst due to its single site catalysed, to the tolerance of polar monomer Property it is good the advantages that, become the hot spot of coordination polymerization area research, mainly include alpha-diimine palladium catalyst (J.Am.Chem.Soc.1995,117,6414), phosphorus sulfonic acid palladium catalyst (Chem.Commun.2011,47,6948) and water Poplar aldimine Raney nickel (Science 2000,287,460) etc..
At this stage, late transition metal catalyst there are the problem of essentially consist in: 1) thermal stability of catalyst is poor, it is difficult to Vinyl polymerization is realized at high temperature.Research shows that introducing the thermal stability that big steric hindrance structure is conducive to improve catalyst (J.Am.Chem.Soc.2013,135,16316).2) since regio- and stereo-selectivity is poor and chain walking process is deposited It usually can only obtain random unformed shape polypropylene when being catalyzed propylene polymerization, be inserted into primitive containing 3 more, 1-.It is logical Often need to improve the solid and regioselectivity of propylene polymerization by the way of chiral ligand and low temperature polymerization (Coord.Chem.Rev.2009,253,2082)。
Summary of the invention
It is an object of the invention to synthesize a kind of multicore nickel-metal catalyst precursor based on cyclic annular salicylaldimine ligand, New strategy is provided suitable for the ethylene rolymerization catalyst of industrial gaseous polymerization to develop, prepares region at room temperature to realize New method is provided with the polypropylene of stereoregular.
The technical scheme is that
A kind of multicore nickel-metal catalyst precursor based on cyclic annular salicylaldimine ligand, structure are shown in formula I:
In Formulas I, R1It for hydrogen atom or is the linear or branched alkyl group that carbon atom number is 1-10;R2For hydrogen atom or it is Carbon atom number is the linear or branched alkyl group of 1-20;R3It for hydrogen atom or is the linear chain or branched chain alkane that carbon atom number is 1-20 Base, or be phenyl or substituted-phenyl;R is 1- naphthalene, phenyl or methyl;L is triphenylphosphine, trimethyl-phosphine or pyridine;N is Integer more than or equal to 1.
Wherein, R1Preferably H, C1~C6 alkyl, C1~C6 alkyl such as methyl, ethyl, propyl, isopropyl, fourth Base, sec-butyl, isobutyl group and tert-butyl etc.;
R2Preferably H, C1~C10 alkyl, C1~C10 alkyl for example methyl, ethyl, propyl, isopropyl, butyl, Sec-butyl, isobutyl group, tert-butyl, amyl, hexyl, heptyl etc.;
R3Preferably H, C1~C10 alkyl, phenyl or substituted-phenyl, C1~C10 alkyl such as methyl, ethyl, third Base, isopropyl, butyl, sec-butyl, isobutyl group, tert-butyl, amyl, hexyl, heptyl etc., the substituted-phenyl are preferably C1~C6 Alkyl-substituted phenyl etc..
Particularly, R and L is respectively 1- naphthalene and triphenylphosphine, or respectively phenyl and triphenylphosphine, methyl and front three Base phosphine or methyl and pyridine, n are preferably the integer of 1-4.
Compound shown in above-mentioned Formulas I general structure, works as R1For hydrogen atom, R2For isopropyl, R3For methyl, L is triphenyl Phosphine, R is 1- naphthalene, is metal catalysts precursors shown in Formula II when n=1:
The present invention provides the method for preparing compound shown in above-mentioned Formulas I general structure, includes the following steps:
1) under conditions of palladium catalyst, by compound shown in compound shown in formula III and formula IV in organic solvent into Row Suzuki coupling reaction, obtains compound shown in Formula V;
2) under conditions of palladium catalyst, compound 3- shown in compound shown in Formula V and Formula IV is replaced into -5- bromosalicylaldehyde Suzuki coupling reaction is carried out in organic solvent, obtains compound shown in Formula VII;
3) under conditions of acid catalyst, compound shown in the Formula VII is self condensed in organic solvent, obtains formula Compound shown in VIII;
4) compound shown in the Formula VIII is reacted into deprotonation with hydrofining or sodium hydride in organic solvent, then It is reacted again with compound shown in Formula IX, obtains multicore nickel-metal catalyst precursor shown in Formulas I.
In above-mentioned reaction equation, R1It for hydrogen atom or is the linear or branched alkyl group that carbon atom number is 1-10;R2For hydrogen atom Or the linear or branched alkyl group for for carbon atom number being 1-20;R3It for hydrogen atom or is straight chain or branch that carbon atom number is 1-20 Alkyl group, or be phenyl or substituted-phenyl;R is 1- naphthalene, phenyl or methyl;L is triphenylphosphine, trimethyl-phosphine or pyrrole Pyridine;N is the integer more than or equal to 1.
For the step 1) into step 4), the organic solvent is one of tetrahydrofuran, toluene or methylene chloride;Institute It states in Suzuki coupling reaction, temperature is 60-100 DEG C, and preferably 75 DEG C, the time is 6-24 hours, preferably 12 hours.
In the step 3), preferably acid catalyst is p-methyl benzenesulfonic acid, and compound and p-methyl benzenesulfonic acid shown in Formula VII rub You are than being 1:0.003;Reaction temperature is 140-160 DEG C, and preferably 150 DEG C, the time is 10-24 hours, preferably 12 hours.
In the step 4), nickel shown in the phenolic hydroxyl group number and hydrofining (or sodium hydride) and formula IV of compound shown in Formula VIII The molar ratio of metal chloride is 1:1-4:0.90-1.10, preferably 1:2:0.95;In the reaction, temperature is 0-40 DEG C, preferably 20 DEG C, the time is 8-24 hours, preferably 12 hours.
The present invention also provides by above-mentioned cyclic annular multicore nickel-metal catalyst precursor and three (phenyl-pentafluoride) borines or it is bis- (1, 5- cyclo-octadiene) nickel composition catalyst, wherein nickel metal center and three (phenyl-pentafluoride) borines or bis- (1,5- cyclo-octadiene) nickel Molar ratio be 1:1-4, preferably 1:2.
Above-mentioned catalyst is used for catalysis in olefine polymerization, such as under the action of the catalyst polymerization reaction occurs for ethylene, gathers Closing temperature is 0-100 DEG C;Polymerization reaction occurs under the action of the catalyst for propylene, and polymerization temperature is -10-50 DEG C.
Polymerization reaction of the invention can carry out in atent solvent, and solvent for use is usually aromatic solvent, preferably toluene Or benzene.
Compared with the prior art, the present invention has following technical advantage:
1. having synthesized the novel cyclic annular multicore salicylic alidehyde imine nickel-metal catalyst precursor of structure for the first time.
2. cyclic annular multicore Raney nickel precursor has high activity, high thermal stability and institute when carrying out vinyl polymerization Secure satisfactory grades sub- weight northylen, provides new strategy to develop industrial gas-phase polymerization catalyst.For example, the Cat1 in Formula II can Obtain reduced branching degree (11-36/1000C), high molecular weight (Mw> 200kDa), the polyethylene material of high-melting-point (112.9-129.5 DEG C) Material, and there is fabulous thermal stability (80-100 DEG C).
3. the solid and regional choice of propylene polymerization processes are realized in salicylic alidehyde imine nickel-metal catalyst field for the first time Property.Such as three core Raney nickel precursor Cat1 of ring-type can be catalyzed propylene polymerization within the scope of relatively high temperature and can obtain High regioregular, high stereospecificity ([mmmm] > 0.90), high-melting-point (138 DEG C) and high-crystallinity isotatic polypropylene.
Specific embodiment
Below by specific embodiment, present invention is further described in detail:
Embodiment 1
The preparation of compound Cat1 shown in Formula II, reaction process are as follows:
1) 5- (4- (3,5- diisopropyl -4- aminophenyl) -9,9- dimethyl -9H- xanthene -5- substitution) -3- methyl The synthesis of salicylide (compound 2)
Under nitrogen protection, compound 9, bis- substituted boracic acid (compound 1) of 9- dimethyl -9H- xanthene -4,5- (6.10g, 14.2mmol), the bromo- 3- cresotinic acid aldehyde (3.67g, 17.0mmol) of 5-, sodium carbonate (7.53g, 71.0mmol) and four (triphenylphosphine) palladium (0.89g, 0.85mmol) is dissolved in the in the mixed solvent of 300mL tetrahydrofuran and 100mL water, is heated to 75 DEG C reaction 12 hours.It is cooled to room temperature, revolving removes organic solvent, is successively extracted with dichloromethane, washes and saturated salt solution Washing, liquid separation are simultaneously dry with anhydrous sodium sulfate.Filtrate uses silica gel column separating purification after being spin-dried for, solvent is petroleum ether/dichloromethane Alkane (5:1), obtaining product is white powder (5.21g, 71%).1H NMR(400MHz,CDCl3)δ11.18(s,2H),8.81 (s,2H),7.45-7.37(m,6H),7.23-7.19(m,4H),7.17-7.09(m,6H),7.03(s,4H),3.66(s,4H), 2.78-2.62 (m, 4H), 2.20 (s, 6H), 1.73 (s, 12H), 1.07 (d, J=6.8Hz, 24H)13C NMR(100MHz, CDCl3)δ195.8,158.7,147.9,147.4,140.2,138.6,133.6,131.9,131.6,131.3,130.4, 129.4,128.9,128.6,128.2,128.1,126.3,125.4,124.6,124.4,123.2,119.6,34.7,32.6, 28.1,22.1,15.1.HRMS(ESI,m/z):Calculated for C35H38NO3[(M+H)+]:520.2846,found 520.2829.
2) synthesis of cyclic ligand
By 5- (4- (3,5- diisopropyl -4- aminophenyl) -9,9- dimethyl -9H- xanthene -5- substitution) -3- methyl Salicylide (5.70g, 11.0mmol) and p-methyl benzenesulfonic acid (0.054g, 0.27mmol) are dissolved in toluene, are heated to 150 DEG C instead It answers 12 hours and uses fraction water device water-dividing.It is cooled to room temperature, washes and is dried over anhydrous sodium sulfate.Filtrate is spin-dried for through silica gel column purification Separation, solvent are petroleum ether/methylene chloride (5:1), obtain 2.90g principal product L-Trimer (51%) and by-product 0.40g L-Tetramer (7%) and 0.22g L-Hexamer (4%).
L-Trimer:1H NMR(400MHz,CDCl3)δ12.85(s,3H),8.32(s,3H),7.52-7.38(m,6H), 7.38-7.08(m,24H),3.09(br,3H),2.81(br,3H),1.96-1.58(m,27H),1.43(br,18H),0.96 (br,9H),0.55(br,9H).13C NMR(100MHz,CDCl3)δ167.4,159.1,147.7,147.1,138.2(br), 137.7(br),136.3,135.1,131.0,130.9,130.6,130.3,130.1,129.5,129.0,128.5,126.3, 125.4(br),125.0,124.3(br),124.3,123.3,123.1,117.9,35.0(br),34.6,30.3(br),28.4 (br),24.8(br),24.1(br),23.2(br),20.9(br),15.7.HRMS(ESI,m/z):C105H106N3O6[(M+H)+]: 1504.8076,found 1504.8123.
L-Tetramer:1H NMR(400MHz,CDCl3)δ12.71(s,4H),8.39(s,4H),7.52-7.37(m, 8H),7.31-7.06(m,32H),2.96(m,8H),1.92(s,12H),1.76(s,24H),1.05(br,48H).13C NMR (100MHz,CDCl3)δ166.7,159.6,147.4,146.5,137.8,135.9,134.6,131.0,130.7,130.3, 129.8,129.6,129.3,129.1,127.9,126.7,125.0,124.9,124.6,123.1,123.9,117.8,34.5, 32.9(br),29.7,28.1,15.5.HRMS(ESI,m/z):Calculated for C140H141N4O8[(M+H)+]: 2006.0743,found 2006.0812.
L-Hexamer:1H NMR(400MHz,CDCl3)δ13.36(s,6H),8.46(s,6H),7.38-7.29(m, 18H),7.27-7.18(m,18H),7.13-7.03(m,18H),6.95(s,6H),3.03(br,6H),2.51(br,6H), 1.77(s,18H),1.70(s,18H),1.45(s,18H),1.29(br,18H),1.17(br,18H),0.63(br,18H), 0.29(br,18H).13C NMR(100MHz,CDCl3)δ166.8,158.4,147.2,147.04,144.8,137.0,135.1, 133.8,130.6,130.3,129.80,129.76,129.0,128.61,128.60,124.9,124.8,123.2,122.8, 118.3,34.7,34.3,30.9,28.6(br),27.5(br),23.6,23.1(br),22.6(br),15.3.MALDI MS: Calculated for C210H211N6O12[(M+H)+]:3009.61,found 3009.29.
3) synthesis of catalyst precarsor Cat1
In glove box, ligand L-Trimer (1.00g, 1.21mmol) and KH (0.097g, 2.41mmol) are dissolved in 4mL Tetrahydrofuran is extremely clarified for stirring 8 hours.It drains solvent and q. s. toluene dissolution is added, be added dropwise to trans- [Ni (PPh3)2 (Naph) Cl] (0.90g, 1.21mmol) toluene solution in, stir 12 hours.Reaction solution is filtered to remove inorganic through diatomite Salt removes solvent with oil pump.Obtained solid is dissolved with a small amount of toluene, filters off insoluble matter, and n-hexane recrystallization is added.Again through dichloro Methane/n-hexane repeated recrystallize to nuclear-magnetism no longer changes, and obtains yellow solid (1.20g, 66%).HRMS(ESI,m/z): Calculated for C189H168KN3Ni3O6P3[(M+K)+]:2880.9838,found 2880.9862.
Embodiment 2
The synthesis of polyethylene: 350mL Andrew Glass polymerization bottle is dried overnight for 120 DEG C in vacuum drying oven, and addition is stirred Magneton is mixed, then places it in the big storehouse of glove box to vacuumize and is cooled to room temperature.In glove box, 13.3 μm of ol catalyst precarsors are taken Cat1、80μmol B(C6F5)3It is added in polymerization bottle with 20mL toluene, connects polyplant, take out glove box.Then poly- It attaches together to set and is connected to high vacuum line, nitrogen, set temperature are 0 DEG C three times for displacement, are balanced 5 minutes.Inject the ethylene of 90psi, dimension Reaction temperature polymerization 10min is held, the methanol solution for adding hydrochloric acid terminates reaction, then reaction solution is poured into 150mL methanol And half an hour is stirred, it filters, resulting polymers are dried in vacuo 12 hours in 80 DEG C, weighing.Polymer 0.020g is obtained, activity 3.0×103g·mol-1(Ni)·h-1
It is 129.5 DEG C that DSC, which measures fusing point, and GPC measures the M of polyethylenewIt is 111.1 × 103Da, Mw/MnIt is 2.8,1H NMR Measuring the degree of branching is 12 branches/every 1000 carbon atom.
Embodiment 3
The synthesis of polyethylene: 350mL Andrew Glass polymerization bottle is dried overnight for 120 DEG C in vacuum drying oven, and addition is stirred Magneton is mixed, then places it in the big storehouse of glove box to vacuumize and is cooled to room temperature.In glove box, 13.3 μm of ol catalyst precarsors are taken Cat1、80μmol B(C6F5)3It is added in polymerization bottle with 20mL toluene, connects polyplant, take out glove box.Then poly- It attaches together to set and is connected to high vacuum line, nitrogen, set temperature are 15 DEG C three times for displacement, are balanced 5 minutes.Inject the ethylene of 90psi, dimension Reaction temperature polymerization 10min is held, the methanol solution for adding hydrochloric acid terminates reaction, then reaction solution is poured into 150mL methanol And half an hour is stirred, it filters, resulting polymers are dried in vacuo 12 hours in 80 DEG C, weighing.Polymer 0.130g is obtained, activity 19.5×103g·mol-1(Ni)·h-1
It is 127.1 DEG C that DSC, which measures fusing point, and GPC measures the M of polyethylenewIt is 194.6 × 103Da, Mw/MnIt is 3.8,1H NMR Measuring the degree of branching is 11 branches/every 1000 carbon atom.
Embodiment 4
The synthesis of polyethylene: 350mL Andrew Glass polymerization bottle is dried overnight for 120 DEG C in vacuum drying oven, and addition is stirred Magneton is mixed, then places it in the big storehouse of glove box to vacuumize and is cooled to room temperature.In glove box, 13.3 μm of ol catalyst precarsors are taken Cat1、80μmol B(C6F5)3It is added in polymerization bottle with 20mL toluene, connects polyplant, take out glove box.Then poly- It attaches together to set and is connected to high vacuum line, nitrogen, set temperature are 25 DEG C three times for displacement, are balanced 5 minutes.Inject the ethylene of 90psi, dimension Reaction temperature polymerization 10min is held, the methanol solution for adding hydrochloric acid terminates reaction, then reaction solution is poured into 150mL methanol And half an hour is stirred, it filters, resulting polymers are dried in vacuo 12 hours in 80 DEG C, weighing.Polymer 0.151g is obtained, activity 22.7×103g·mol-1(Ni)·h-1
It is 125.8 DEG C that DSC, which measures fusing point, and GPC measures the M of polyethylenewIt is 229.4 × 103Da, Mw/MnIt is 3.6,1H NMR Measuring the degree of branching is 16 branches/every 1000 carbon atom.
Embodiment 5
The synthesis of polyethylene: 350mL Andrew Glass polymerization bottle is dried overnight for 120 DEG C in vacuum drying oven, and addition is stirred Magneton is mixed, then places it in the big storehouse of glove box to vacuumize and is cooled to room temperature.In glove box, 13.3 μm of ol catalyst precarsors are taken Cat1、80μmol B(C6F5)3It is added in polymerization bottle with 20mL toluene, connects polyplant, take out glove box.Then poly- It attaches together to set and is connected to high vacuum line, nitrogen, set temperature are 50 DEG C three times for displacement, are balanced 5 minutes.Inject the ethylene of 90psi, dimension Reaction temperature polymerization 10min is held, the methanol solution for adding hydrochloric acid terminates reaction, then reaction solution is poured into 150mL methanol And half an hour is stirred, it filters, resulting polymers are dried in vacuo 12 hours in 80 DEG C, weighing.Polymer 0.269g is obtained, activity 40.4×103g·mol-1(Ni)·h-1
It is 123.5 DEG C that DSC, which measures fusing point, and GPC measures the M of polyethylenewIt is 184.4 × 103Da, Mw/MnIt is 7.6,1H NMR Measuring the degree of branching is 18 branches/every 1000 carbon atom.
Embodiment 6
The synthesis of polyethylene: 350mL Andrew Glass polymerization bottle is dried overnight for 120 DEG C in vacuum drying oven, and addition is stirred Magneton is mixed, then places it in the big storehouse of glove box to vacuumize and is cooled to room temperature.In glove box, 13.3 μm of ol catalyst precarsors are taken Cat1、80μmol B(C6F5)3It is added in polymerization bottle with 20mL toluene, connects polyplant, take out glove box.Then poly- It attaches together to set and is connected to high vacuum line, nitrogen, set temperature are 80 DEG C three times for displacement, are balanced 5 minutes.Inject the ethylene of 90psi, dimension Reaction temperature polymerization 10min is held, the methanol solution for adding hydrochloric acid terminates reaction, then reaction solution is poured into 150mL methanol And half an hour is stirred, it filters, resulting polymers are dried in vacuo 12 hours in 80 DEG C, weighing.Polymer 0.295g is obtained, activity 44.3×103g·mol-1(Ni)·h-1
It is 120.7 DEG C that DSC, which measures fusing point, and GPC measures the M of polyethylenewIt is 85.4 × 103Da, Mw/MnIt is 8.2,1H NMR is surveyed Obtaining the degree of branching is 26 branches/every 1000 carbon atom.
Embodiment 7
The synthesis of polyethylene: 350mL Andrew Glass polymerization bottle is dried overnight for 120 DEG C in vacuum drying oven, and addition is stirred Magneton is mixed, then places it in the big storehouse of glove box to vacuumize and is cooled to room temperature.In glove box, 13.3 μm of ol catalyst precarsors are taken Cat1、80μmol B(C6F5)3It is added in polymerization bottle with 20mL toluene, connects polyplant, take out glove box.Then poly- It attaches together to set and is connected to high vacuum line, nitrogen, set temperature are 100 DEG C three times for displacement, are balanced 5 minutes.The ethylene of 90psi is injected, Maintaining reaction temperature polymerize 10min, and the methanol solution that hydrochloric acid is added terminates reaction, then reaction solution is poured into 150mL methanol And half an hour is stirred, it filters, resulting polymers are dried in vacuo 12 hours in 80 DEG C, weighing.Polymer 0.180g is obtained, activity 27.0×103g·mol-1(Ni)·h-1
It is 112.9 DEG C that DSC, which measures fusing point, and GPC measures the M of polyethylenewIt is 33.6 × 103Da, Mw/MnIt is 3.4,1H NMR is surveyed Obtaining the degree of branching is 36 branches/every 1000 carbon atom.
Embodiment 8
The synthesis of polyethylene: 350mL Andrew Glass polymerization bottle is dried overnight for 120 DEG C in vacuum drying oven, and addition is stirred Magneton is mixed, then places it in the big storehouse of glove box to vacuumize and is cooled to room temperature.In glove box, 40 μm of ol catalyst precarsors are taken Cat2、80μmol B(C6F5)3It is added in polymerization bottle with 20mL toluene, connects polyplant, take out glove box.Then poly- It attaches together to set and is connected to high vacuum line, nitrogen, set temperature are 25 DEG C three times for displacement, are balanced 5 minutes.Inject the ethylene of 90psi, dimension Reaction temperature polymerization 10min is held, the methanol solution that hydrochloric acid is added terminates reaction, then reaction solution is poured into 150mL methanol simultaneously It stirs half an hour, filtering, resulting polymers are dried in vacuo 12 hours in 80 DEG C, weighing.Obtain polymer 0.010g, activity 1.5 ×103g·mol-1(Ni)·h-1
It is 95.3 DEG C that DSC, which measures fusing point, and GPC measures the M of polyethylenewIt is 3.7 × 103Da, Mw/MnIt is 2.1.
1 vinyl polymerization result of tablea
aPolymerizing condition: 13.3 μm of ol Cat1 or 40 μm of ol Cat2,80 μm ol cocatalyst B (C6F5)3, 25mL toluene, Ethylene pressure is 90psi, polymerization time 10min.b g/(mmol Ni·h)。cFrom polymer1H NMR is obtained, and unit is every The branch number of 1000 carbon.dThe endothermic peak that fusing point is recycled using second.eMolecular weight unit is 103G/mol, through high temperature GPC Test, using polystyrene as reference substance and the K through polyethylene and α correct to obtain.
Embodiment 9
Polyacrylic synthesis: 350mL Andrew Glass polymerization bottle is dried overnight for 120 DEG C in vacuum drying oven, and addition is stirred Magneton is mixed, then places it in the big storehouse of glove box to vacuumize and is cooled to room temperature.In glove box, 13.3 μm of ol catalyst precarsors are taken Cat1、80μmol B(C6F5)3It is added in polymerization bottle with 20mL toluene, connects polyplant, take out glove box.Then poly- It attaches together to set and is connected to high vacuum line, nitrogen, set temperature are -10 DEG C three times for displacement, are balanced 5 minutes.The propylene of 30psi is injected, Maintaining reaction temperature polymerize 60min, and the methanol solution that hydrochloric acid is added terminates reaction, then reaction solution is poured into 150mL methanol And half an hour is stirred, it filters, resulting polymers are dried in vacuo 12 hours in 80 DEG C, weighing.Polymer 0.020g is obtained, activity 0.50×103g·mol-1(Ni)·h-1
It is 138.4 DEG C that DSC, which measures fusing point, and GPC measures the M of polyethylenewIt is 22.4 × 103Da, Mw/MnIt is 2.2, Quan Tongli Structure regularity [mmmm] > 0.90.
Embodiment 10
Polyacrylic synthesis: 350mL Andrew Glass polymerization bottle is dried overnight for 120 DEG C in vacuum drying oven, and addition is stirred Magneton is mixed, then places it in the big storehouse of glove box to vacuumize and is cooled to room temperature.In glove box, 13.3 μm of ol catalyst precarsors are taken Cat1、80μmol B(C6F5)3It is added in polymerization bottle with 20mL toluene, connects polyplant, take out glove box.Then poly- It attaches together to set and is connected to high vacuum line, nitrogen, set temperature are 0 DEG C three times for displacement, are balanced 5 minutes.Inject the propylene of 30psi, dimension Reaction temperature polymerization 60min is held, the methanol solution that hydrochloric acid is added terminates reaction, then reaction solution is poured into 150mL methanol simultaneously It stirs half an hour, filtering, resulting polymers are dried in vacuo 12 hours in 80 DEG C, weighing.Obtain polymer 0.037g, activity 0.93 ×103g·mol-1(Ni)·h-1
It is 137.8 DEG C that DSC, which measures fusing point, and GPC measures the M of polyethylenewIt is 18.5 × 103Da, Mw/MnIt is 3.2, Quan Tongli Structure regularity [mmmm]=0.81.
Embodiment 11
Polyacrylic synthesis: 350mL Andrew Glass polymerization bottle is dried overnight for 120 DEG C in vacuum drying oven, and addition is stirred Magneton is mixed, then places it in the big storehouse of glove box to vacuumize and is cooled to room temperature.In glove box, 13.3 μm of ol catalyst precarsors are taken Cat1、80μmol B(C6F5)3It is added in polymerization bottle with 20mL toluene, connects polyplant, take out glove box.Then poly- It attaches together to set and is connected to high vacuum line, nitrogen, set temperature are 15 DEG C three times for displacement, are balanced 5 minutes.Inject the propylene of 30psi, dimension Reaction temperature polymerization 60min is held, the methanol solution that hydrochloric acid is added terminates reaction, then reaction solution is poured into 150mL methanol simultaneously It stirs half an hour, filtering, resulting polymers are dried in vacuo 12 hours in 80 DEG C, weighing.Obtain polymer 0.046g, activity 1.15 ×103g·mol-1(Ni)·h-1
It is 134.1 DEG C that DSC, which measures fusing point, and GPC measures the M of polyethylenewIt is 12.1 × 103Da, Mw/MnIt is 2.9, Quan Tongli Structure regularity [mmmm]=0.80.
Embodiment 12
Polyacrylic synthesis: 350mL Andrew Glass polymerization bottle is dried overnight for 120 DEG C in vacuum drying oven, and addition is stirred Magneton is mixed, then places it in the big storehouse of glove box to vacuumize and is cooled to room temperature.In glove box, 13.3 μm of ol catalyst precarsors are taken Cat1、80μmol B(C6F5)3It is added in polymerization bottle with 20mL toluene, connects polyplant, take out glove box.Then poly- It attaches together to set and is connected to high vacuum line, nitrogen, set temperature are 50 DEG C three times for displacement, are balanced 5 minutes.Inject the propylene of 30psi, dimension Reaction temperature polymerization 60min is held, the methanol solution that hydrochloric acid is added terminates reaction, then reaction solution is poured into 150mL methanol simultaneously It stirs half an hour, filtering, resulting polymers are dried in vacuo 12 hours in 80 DEG C, weighing.Obtain polymer 0.035g, activity 0.88 ×103g·mol-1(Ni)·h-1
GPC measures the M of polyethylenewIt is 11.6 × 103Da, Mw/MnIt is 4.3, isotacticity [mmmm]=0.49, It is 3% that 1,3%-, which is inserted into content,.
2 propylene polymerization result of tablea
aPolymerizing condition: 13.3 μm of ol Cat1,80 μm ol cocatalyst B (C6F5)3, 25mL toluene, propylene pressure is 30psi, 25 DEG C, polymerization time 60min.b g/(mmol Ni·h)。cThe endothermic peak that fusing point is recycled using second.dPoint Son amount unit is 103G/mol is tested through high temperature GPC, corrects to obtain using polystyrene as reference substance and through polyacrylic K and α.e By the high temperature of polymer13C NMR is calculated.
The ring-type for describing catalyzed ethylene polymerization or propylene polymerization provided by the present invention above by specific embodiment is more Catalyst core salicylic alidehyde imine nickel-metal catalyst precursor and be made from it, it will be understood by those of skill in the art that not It is detached from the range of present invention essence, certain transformation or modification can be made to the present invention, and be not limited to disclosed in embodiment Content.

Claims (10)

1. a kind of Raney nickel precursor is the multicore nickel-metal catalyst precursor based on cyclic annular salicylaldimine ligand, structure It is shown in formula I:
In Formulas I, R1For the straight chained alkyl of H or C1-C10 or the branched alkyl of C3-C10;R2For H or C1-C20 straight chained alkyl or The branched alkyl of C3-C20;R3For the straight chained alkyl of H, C1-C20 or branched alkyl, phenyl or the substituted-phenyl of C3-C20;R is 1- naphthalene, phenyl or methyl;L is triphenylphosphine, trimethyl-phosphine or pyridine;N is positive integer.
2. Raney nickel precursor as described in claim 1, which is characterized in that the substituted-phenyl is C1~C6 alkyl substituted benzene Base.
3. Raney nickel precursor as described in claim 1, which is characterized in that R is 1- naphthalene or phenyl, and L is triphenylphosphine;Or Person, R are methyl, and L is trimethyl-phosphine or pyridine.
4. Raney nickel precursor as described in claim 1, which is characterized in that the structure of the Raney nickel precursor such as Formula II institute Show:
Wherein, PPh3Triphenylphosphine is represented, R is 1- naphthalene.
5. the preparation method of Raney nickel precursor described in claim 1, comprising the following steps:
1) compound shown in formula III and compound Suzuki coupling reaction shown in formula IV, obtain compound shown in Formula V;
2) with 3- substitution -5- bromosalicylaldehyde shown in Formula IV Suzuki coupling reaction occurs for compound shown in Formula V, obtains Formula VII institute Show compound;
3) under conditions of acid catalyst, compound shown in VII is self condensed, and obtains compound shown in Formula VIII;
4) compound shown in Formula VIII reacts deprotonation with hydrofining or sodium hydride, then again with nickel metal chloride NiRL2Cl Reaction, obtains Raney nickel precursor shown in Formulas I;
In reaction equation, R1For the straight chained alkyl of H or C1-C10 or the branched alkyl of C3-C10;R2For the straight chained alkyl of H or C1-C20 Or the branched alkyl of C3-C20;R3For the straight chained alkyl of H, C1-C20 or branched alkyl, phenyl or the substituted-phenyl of C3-C20;R For 1- naphthalene, phenyl or methyl;L is triphenylphosphine, trimethyl-phosphine or pyridine;N is positive integer.
6. preparation method as claimed in claim 5, which is characterized in that the reaction of step 1) to step 4) in organic solvent into Row, organic solvent used are selected from one of tetrahydrofuran, toluene and methylene chloride.
7. preparation method as claimed in claim 5, which is characterized in that the temperature of the Suzuki coupling reaction of step 1) and step 2) Degree is 60-100 DEG C, and the time is 6-24 hours;Acid catalyst described in step 3) is p-methyl benzenesulfonic acid, compound shown in Formula VII Molar ratio with p-methyl benzenesulfonic acid is 1:0.003, and self-condensation reaction temperature is 140-160 DEG C, and the time is 10-24 hours;Step 4) molar ratio of compound shown in Formula VIII and hydrofining or sodium hydride, nickel metal chloride is 1:3-6:2.90-3.10 in, instead Answering temperature is 0-40 DEG C, and the time is 8-24 hours.
8. a kind of catalyst system, including Claims 1 to 4 any the Raney nickel precursor and three (phenyl-pentafluoride) borines or Bis- (1,5- cyclo-octadiene) nickel.
9. the application of catalyst system described in claim 8 in olefin polymerization.
10. application as claimed in claim 9, which is characterized in that the alkene is ethylene or propylene.
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1361183A (en) * 2000-12-25 2002-07-31 中国科学院长春应用化学研究所 Catalyst for multinuclear alpha-diimine nickel olefine polymerization
CN1637023A (en) * 2004-12-09 2005-07-13 中山大学 Mononuclear and multinuclear polyvinyl acenaphthenyl diimido nickel catalyst and its prepn process
CN101864010A (en) * 2010-06-21 2010-10-20 北京大学 Bimetallic catalyst precursor and application thereof to olefin polymerization or copolymerization

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1361183A (en) * 2000-12-25 2002-07-31 中国科学院长春应用化学研究所 Catalyst for multinuclear alpha-diimine nickel olefine polymerization
CN1637023A (en) * 2004-12-09 2005-07-13 中山大学 Mononuclear and multinuclear polyvinyl acenaphthenyl diimido nickel catalyst and its prepn process
CN101864010A (en) * 2010-06-21 2010-10-20 北京大学 Bimetallic catalyst precursor and application thereof to olefin polymerization or copolymerization

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
Double-Decker-Type Dinuclear Nickel Catalysts for Olefin Polymerization:Efficient Incorporation of Functional Co-Moneomers;Daisuke Takeuchi et al;《Angewandte Chemie》;20131107;第125卷(第48期);第12536-12540页
Ethylene (Co)polymerization by Binuclear Nickel Phenoxyiminato Catalysts with Cofacial Orientation;Zhongtao Chen et al;《Macromolecules》;20161130;第49卷;第8848-8854页
Ethylene Polymerization with a Highly Active and Long-Lifetime Macrocycle Trinuclear 2,6-Bis(imino)pyridyliron;Jingyu Liu et al;《Macromolecules》;20050222;第38卷;第2559-2563页
Multinuclear Olefin Polymerization Catalysts;Massimiliano Delferro et al;《CHEMICAL REVIEWS》;20110217;第111卷;第2450-2485页

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