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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
Bisvinybenzene-terminated polydimethylsiloxane (VTPDMS) was prepared by hydrosilylation of bisdimethylhydrogensiloxy-terminated polydimethylsiloxane (PDMS) with meta-divinylbenzene. Its structure was characterized by 1H NMR. By VTPDMS and styrene free radical bulk copolymerization, modified polystyrene was prepared. The morphology of the product was characterized by scanning electron microscopy. The results showed that the copolymer of PDMS and styrene was evenly dispersed as spherical particles in the polystyrene matrix