Preparation method of high trans-1,4-isoprene-butadiene copolymer

A technology of isoprene and copolymer, applied in the field of polymer synthesis, can solve the problems of discharge, difficult to dissipate heat, difficult materials, etc.
CN108610451AInactive Publication Date: 2018-10-02QINGDAO UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
QINGDAO UNIV OF SCI & TECH
Publication Date
2018-10-02
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a preparation method of a high trans-1,4-isoprene-butadiene copolymer. By adopting a solution slurry method, isoprene and butadiene are catalyzed to be polymerized by a supported titanium catalyst and further the high trans-1,4-isoprene-butadiene copolymer is synthesized. The copolymer consists of an isoprene unit with the mole fraction of 42.8 to 89.9 percent and a butadiene unit with the mole fraction of 10.1 to 57.2 percent; the mole contents of trans-1,4-configurations of the isoprene unit and the butadiene unit are both greater than 97 percent. Compared with high trans-1,4-polyisoprene and high trans-1,4-polybutadiene, the copolymer as a novel trans-1,4-polydiolefin has the advantage that processing and blending properties are remarkably improved; meanwhile, the copolymer has excellent dynamic properties such as small rolling resistance, good flexural fatigue resistance and low dynamic heat build-up and provides an ideal sizing material for high-performancegreen tires.
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Description

technical field

[0001] The invention belongs to the technical field of polymer synthesis, in particular to a method for preparing a high trans-1,4-isoprene-butadiene copolymer and a high trans-1,4-isoprene prepared by the method ene-butadiene copolymers. Background technique

[0002] Due to its special structure and properties, high trans-1,4-diene polymer occupies a special position in the spectrum of rubber-plastic materials. Compared with cis-1,4-structured polymers, it has Relatively strong crystallization ability, it behaves as a hard material with high hardness at room temperature, so the processing and blending properties are poor. After long-term practice, relevant researchers have summed up the ideal model of low rolling resistance, high wear resistance, high fatigue resistance and environmental friendliness. Recently, high trans-1,4-diene polymers have attracted more and more attention from the industry because of their excellent dynamic properties, such as excel...

Claims

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