提出并证明了一种在聚合物链中间指定位置引入特定功能基团的方法.以聚丙烯酸甲酯(PMA)为大分子引发剂,利用原子转移自由基聚合(ATRP)在PMA链端单加成烯丙醇单体,氧化为羧基后利用异戊烯醇保护,使链端重新具有了ATRP的引发活性,再次引发丙烯酸甲酯(MA)的聚合,最后选择性脱除异戊烯醇保护,从而获得在链上指定位置含有羧基的PMA,证明了本方法的可行性.该方法可以进一步扩展,用来合成结合处带有特定官能团的多嵌段共聚物.
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