摘要
利用活性阴离子聚合的方法设计并合成了一系列可控窄相对分子质量分布的硅氢功能化苯乙烯-异戊二烯-苯乙烯嵌段共聚物(SIS)线形前驱体,苯乙烯嵌段物质的量分数可达0.91以上,通过偶联剂将线形前躯体偶联成臂数可控的硅氢功能化SIS星形弹性体(有效控制为8臂左右)。本工作拓展并延伸了SIS星形弹性体的功能,为合成各种功能化SIS星形弹性体提供了新思路和新方法。
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.
作者
马庆驰
马红卫
李杨
MA Qingchi;MA Hongwei;LI Yang(Dalian University of Technology,Dalian 116024,China)
出处
《橡胶工业》
CAS
2020年第12期919-923,共5页
China Rubber Industry
基金
国家重点研发计划项目(2017YFB0307101)。
