Polymerization catalysts of oxirane compounds and process for preparing polymers of oxirane compounds using the catalysts
申请人:DAISO CO., LTD.
公开号:US20020013388A1
公开(公告)日:2002-01-31
Polymerization catalysts of oxirane compounds are catalysts which are suitable to carry out suspension precipitation polymerization of the oxirane compounds in an organic solvent which cannot dissolve the polymers and comprise a reaction product of (A) an alkylaluminum compound, (B) an oxoacid compound of phosphorus having at least one OH group in its molecule and (C) a nitrogen-containing cyclic compound having pKa of 6 to 8. A process for preparing the polymers of the oxirane compounds is a process wherein the monomeric oxirane compounds are subjected to the suspension precipitation polymerization in the organic solvent which cannot dissolve the polymers in the presence of the catalysts to prepare the polymers of the oxirane compounds.
环氧乙烷化合物聚合催化剂是适用于在不能溶解聚合物的有机溶剂中进行环氧乙烷化合物悬浮沉淀聚合反应的催化剂,由以下物质的反应产物组成:(A)烷基铝化合物;(B)分子中至少有一个OH基团的磷的环氧化合物;(C)pKa为6至8的含氮环状化合物。制备环氧乙烷化合物聚合物的工艺是在催化剂存在下,将环氧乙烷单体化合物在不能溶解聚合物的有机溶剂中进行悬浮沉淀聚合,制备环氧乙烷化合物聚合物的工艺。