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研究了以辛酸亚锡为催化剂的ε-己内酯与聚乙二醇在110 ℃的熔体开环聚合制备PCL/PEG嵌段共聚物,分步加入ε-己内酯对嵌段聚合物的分子量有大幅度提高.研究了催化剂用量、反应时间及PEG分子量对PCL/PE G嵌段共聚物合成反应的影响.

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