研究了三异丁基铝-环醚-丁二酰亚胺三元催化剂对环氧氯丙烷的开环聚合。我们根据三异丁基铝/丁二酰亚胺=1.75—2为最佳比,催化活性中心的组成不应该是三异丁基铝与丁二酰亚胺分子中三个官能团全反应的产物的实验结果,否定了Y.Masuda等提出的关于此类催化剂活性中心结构的设想。 对不同的催化剂溶液进行了电导率测定,从而认定催化活性中心具有离子特征,并推断这一引发体系属阴离子型。 The ring-opening polymerization of epichlorohydrin with triisobutylaluminum-cyclic ether-succinimide three-component catalyst was studied. Based on the optimal ratio of triisobutylaluminum / succinimide = 1.75-2, the composition of the catalytically active center should not be the product of the complete reaction of the three functional groups of the triisobutylaluminum with the succinimide molecule The experimental results, denied Y.Masuda et al proposed on the structure of the catalyst activity center idea. The conductivity of different catalyst solutions was determined, which confirmed that the catalytic activity centers have ionic characteristics, and concluded that this initiator system is anionic.