质量比为95/5的苯乙烯和1-(2-叔丁基过氧异丙基)-3-异丙烯基苯(D120)在过氧化苯甲酰的引发下进行了本体共聚,红外光谱和DSC分析表明,共聚物中保留了D120的过氧键.在PS和EPDM的共混过程中加入了这种带过氧基团的聚苯乙烯,激光光散射、红外分析及溶解分离试验表明共混过程中同时发生了接枝反应和交联反应,分散相粒子的尺寸明显减小,接枝物起了增容作用.
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