文章摘要
Synthesis Method of Silicone-Hydrogen Functionalized SIS Star Elastomer
Received:February 20, 2020  Revised:February 20, 2020
DOI：10.12136/j.issn.1000-890X.2020.12.0919
Key Words: hydrosilylation functionaliztion；SIS block copolymer；linear precursor；star elastomer；living anionic polymerization
Author NameAffiliationE-mail
MA Qingchi* Dalian University of Technology maqingchi@foxmail.com 
MA Hongwei* Dalian University of Technology mahw@dlut. edu. cn 
LI Yang* Dalian University of Technology liyang@dlut. edu. cn 
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Abstract:
      A series of linear precursors of silicone-hydrogen functionalized styrene-isoprene-styrene block copolymers（SIS） with controlled narrow relative molecular weight distribution were designed and synthesized by living anionic polymerization. The mole fraction of styrene block could reach more than 0. 91， and linear precursors were further coupled into a silicone-hydrogen functionalized SIS star elastomer with a controllable number of arms（effectively controlled to about 8 arms） through a coupling agent. This study expanded and extended the functions of SIS star elastomer，and provided new ideas and new methods for the synthesis of various functionalized SIS star elastomers.
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