China Petroleum & Chemical Corporation

Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corporation

Nini Wang

Lin Xu

Hui Liu

Chuanqing Li

Xinhe Kang

Aimin Liang

Guozhu Yu

Ximing Xie

Ke Jiang

Wenjuan Sun

Liangliang Qu

The present invention provides a functional diene polymer, a preparation method thereof and a rubber composition comprising the functional diene polymer. The functional diene polymer comprises at least one type of conjugated diene structural units and silane coupler functional units represented by formula (I) in its molecular chain, and the number-average molecular weight of the functional diene polymer is 50,000&#x2dc;1,000,000; R-Rare C-Clinear or branched alkyl or heteroatom-containing C-Clinear or branched alkyl, and the heteroatom is selected from one or more of halogen, oxygen, sulfur, silicon, and phosphorus. Not only the relationship between the wet slip resistance and the rolling resistance of the functional diene polymer is effectively improved, but also the offensive odor produced in the rubber mixing process owing to the addition of the silane coupler is reduced. 

Functional diene polymer, preparation method thereof, and rubber composition comprising the same

Provided is a copolymer rubber, comprising a copolymer having a star-shaped block structure (SIB-PA)-X, wherein SIB is a block comprising styrene, butadiene, and isoprene as constituent monomers; PA is a block comprising butadiene or isoprene as a constituent monomer; X is the residue of at least one coupling agent; and n=2-4. Also provided is a process for preparing the copolymer rubber and use thereof.

Copolymer rubber having a star-shaped block structure, the preparation process and use thereof

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Beijing, China

Nini Wang