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氯乙烯、苯乙烯、甲基丙烯酸甲酯聚合时,都存在自动加速度现象,三者有何异同这三种单体聚合的链终止方式有何不同氯乙烯聚合时,选用半衰期约为2h的引发剂,可望接近匀速反应,解释其原因

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以苯乙烯、甲基丙烯酸甲酯、丙烯酸丁酯为单体进行种子乳液聚合。若要增强苯丙乳液对极性被粘物的粘附性,可以加入何种乙烯基单体？为什么？ 2 、乳化剂选择有何标准？用量怎样确定？ 3 、反应体系中加适当的碳酸氢钠有何用意？ 4 、何为固含量和凝胶率,如何表示？

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