【摘要】 通过双二甲基氢硅氧封端的聚二甲基硅氧烷 (PDMS)与间二乙烯基苯的硅氢加成反应制备了双乙烯基苯封端的聚二甲基硅氧烷 (VTPDMS) ,用1H NMR对其结构进行了表征。通过VTPDMS和苯乙烯的自由基本体共聚合 ,制备了改性聚苯乙烯。用扫描电镜对产物的形态进行了表征 ,结果表明PDMS和苯乙烯的共聚物以球形粒子均匀地分散于聚苯乙烯基体中更多还原

【Abstract】 Bis vinyl phenyl terminated polydimethylsiloxane (VTPDMS) was synthesized by the hydrosilylation of bis dimethylhydrogen siloxyl terminated PDMS with m divinyl benzene. The structure of the VTPDMS was characterized by 1H NMR. The bulk radical copolymerization of VTPDMS with styrene was carried out. The SEM micrograph of the copolymerization product showed that the spherical styrene and VTPDMS copolymer particles were dispersed uniformly in the polystyrene matrix. The results of swelling experiments on the copolymerization product indicated that polystyrene matrix was cross linked if the content of VTPDMS exceed a definite value.更多还原