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Copolymer of 1,3-butadiene and 1-butene, preparation method thereof and rubber composition

A technology of copolymer and butadiene is applied in the field of its preparation method, rubber composition, and copolymer of 1,3-butadiene and 1-butene, and can solve the problems that the comprehensive performance of rubber needs to be further improved, and achieves the Excellent aging resistance and improved sealing effect

Active Publication Date: 2019-09-27
CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The copolymer disclosed in the above-mentioned patents can be used as a component of rubber to improve the performance of rubber, but only improves the partial performance of rubber, and the comprehensive performance of rubber needs to be further improved

Method used

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  • Copolymer of 1,3-butadiene and 1-butene, preparation method thereof and rubber composition
  • Copolymer of 1,3-butadiene and 1-butene, preparation method thereof and rubber composition
  • Copolymer of 1,3-butadiene and 1-butene, preparation method thereof and rubber composition

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preparation example Construction

[0037] The application also provides the preparation method of the copolymer of butadiene and 1-butene, comprising:

[0038] The butadiene monomer solution and the 1-butene monomer solution of the catalyst combination are mixed to initiate polymerization to obtain a copolymer;

[0039] Alternatively, the 1-butene monomer solution, part of the butadiene solution and the catalyst composition are mixed to initiate polymerization, and the remaining butadiene solution is gradually added to the polymerization system for polymerization to obtain a copolymer; the catalyst composition The compound is a mixture of rare earth catalyst, organoaluminum compound and organoboron salt compound.

[0040] The above-mentioned copolymer of butadiene and 1-butene can be carried out in the following manner more specifically: in the presence of a catalyst composition, (1) the mixed solution containing butadiene and 1-butene is initiated to polymerize; ( 2) obtained by adding butadiene to the polyme...

Embodiment 1

[0074] Add 250mL of toluene to a 2L stainless steel reaction kettle fully purged with nitrogen, and fill it with 1.0atm 1-butene gas under vigorous stirring, so that it reaches a saturated state in the toluene solution; in the glove box, the formula 5 Complex (74mg, 146μmol), Al i Bu 3 (1.5mL, 1.46mmol, 1.0M toluene solvent) and triphenylcarbonate tetrakis(pentafluorophenyl)borate [Ph 3 C][B (C 6 f 5 ) 4 ] (135 mg, 146 μmol) was dissolved in 20 mL of toluene to prepare a catalyst solution; after that, the catalyst solution was taken out from the glove box and quickly added to the polymerization reaction system at 40° C. to initiate polymerization; meanwhile, the toluene solution of butadiene ( 130g solution, 26.7% by weight butadiene) was added into the polymerization system at a constant speed, and the dropping speed of the butadiene solution was controlled by a flow meter. 1-Butene was also fed throughout the polymerization. After the butadiene solution was added dropw...

Embodiment 2

[0077] Add 250mL toluene in the 2L stainless steel reaction kettle, then fully purging with nitrogen, simultaneously, the toluene solution of butadiene and 1-butene joins in the polymerization system; In the glove box, the complex (74mg, 150μmol ), Al i Bu 3 (1.5mL, 1.5mmol, 1.0M toluene solvent) and triphenylcarbonate tetrakis(pentafluorophenyl)borate [Ph 3 C][B(C 6 f 5 ) 4 ] (139 mg, 150 μmol) was dissolved in 20 mL of toluene, the catalyst solution was taken out from the glove box and quickly added to the polymerization reaction system at 40 ° C to initiate polymerization; meanwhile, the toluene solution of butadiene and 1-butene was constant After adding the mixed solution of butadiene and 1-butene dropwise, immediately add 20mL of methanolic hydrochloric acid solution to terminate the reaction; then add a large amount of ethanol to separate the copolymer, and dry the copolymer in vacuum at 40°C. The obtained polymer was labeled as sample B and characterized until the...

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Abstract

The present invention provides a copolymer of 1,3-butadiene and 1-butene. The copolymer of 1,3-butadiene and 1-butene is a random copolymer or a multiblock copolymer containing a butadiene structural unit and a 1-butene structural unit, and the random copolymer or multiblock copolymer does not have a crystallization temperature; the content of cis-1,4 in the butadiene structural unit of the copolymer is 70 mol% or more, and the content of 1,2- in the butadiene structural unit of the copolymer is less than 30 mol%; and the content of 1-butene in the copolymer is 5-60 mol%. The copolymer of butadiene and 1-butene has excellent aging resistance, ozone resistance, abrasion resistance, heat resistance, crack growth resistance and sealing property, and can be applied as a rubber.

Description

technical field [0001] The invention relates to the technical field of novel rubber, in particular to a copolymer of 1,3-butadiene and 1-butene, a preparation method thereof and a rubber composition. Background technique [0002] The copolymers obtained by copolymerization of two or more monomers can be divided into random copolymers, alternating copolymers, block copolymers, gradient copolymers and graft copolymers according to the different repeating monomer units arranged. Although there have been recent reports on random copolymers of ethylene and butadiene, there have been no reports on random copolymers of α-olefins with more than three carbons and butadiene. [0003] JP11-228743A discloses an unsaturated elastomer composition composed of an unsaturated olefin-based copolymer as a random copolymer and rubber. However, the copolymer includes various structures having not only 1,4 bonds and 1,2 bonds (including 3,4 bonds), but also three-membered rings and five-membered...

Claims

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Application Information

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IPC IPC(8): C08F236/06C08F210/08C08F4/54C08L9/00
CPCC08F236/06C08L9/00C08F210/08C08F4/545
Inventor 崔冬梅吴春姬王田田
Owner CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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