专利号:US-9512269-B2 优先权日:2011-12-20 标 题 :Methods for polymer synthesis 发明人:ALLEN SCOTT D; SIMONEAU CHRISTOPHER A; KEEFE WILLIAM D; CONUEL JEFF R 权利人:NOVOMER INC 摘要:The present invention provides methods for reducing induction periods in epoxide-CO 2 copolymerizations. In certain embodiments, the methods include the step of contacting an epoxide with CO 2 in the presence of two catalysts: an epoxide hydrolysis catalyst and an epoxide CO 2 copolymerization catalyst. In another aspect, the invention provides catalyst compositions comprising a mixture of an epoxide hydrolysis catalyst and an epoxide CO 2 copolymerization catalyst.