二氧化碳-氧化环己烯的共聚反应  

Copolymerization of Carbon Dioxide and Cyclohexene Oxide by Polymer-Supported Bimetallic Catalysts

作　　者：张南燕[1] 陈立班[1] 杨淑英[1] 余爱芳[1] 何树杰[1] 

机构地区：[1]中国科学院广州化学研究所,广州510650

出　　处：《广州化学》2000年第2期1-6,共6页Guangzhou Chemistry

基　　金：国家自然科学基金!资助项目 ( 2 9734 1 2 0 )

摘　　要：由CO2 -氧化环己烯 (CHO)配位催化共聚制得高Tg 的脂肪族聚环己基撑碳酸酯 ,并用IR、NMR和DSC等进行了表征 ,用TG对聚合物的热稳定性进行了分析。加入异氰酸苯酯有提高产物特性粘数的作用。Aliphatic poly(cyclohexene carbonate),which has a T g of 120℃,was synthesized by coordinate-catalytical copolymerization of carbon dioxide and cyclohexene oxide (CHO) with polymer-supported bimetallic catalyst (PBM) and was characterized by IR,NMR and DSC measurements.The thermal degradation of copolymers was studied by TG measurement, and found that 5% and 50% weight loss temperature (t 5% ,t 50% ) were 177℃ and 273℃, respectively. “End capping” can raise t 5% to 210℃.The copolymerization of CO 2, cyclohexene oxide (CHO) and phenyl isocyanate (PI) can increase the intrinsic viscosity ([η]) but decrease the T g.

关 键 词：二氧化碳 氧化环己烯 共聚 聚环己基撑碳酸酯 

分 类 号：O633.14[理学—高分子化学] O631.5[理学—化学]