金属锂盐-烷基铝活性阴离子聚合体系催化环氧环己烷与CO_2共聚反应  

Copolymerization of Carbon Dioxide and Cyclohexane Oxide Catalyzed by Lithium Salts in the Presence of Alkyl Aluminium

作　　者：叶李薇[1,2] 彭华乔 杨刚[2] 张东岳[2] 夏祖西 Liwei Ye;Huaqiao Peng;Gang Yang;Dongyue Zhang;Zuxi Xia(The Second Research Institute of Civil Aviation Administration of China, Chengdu 610207, China;College of Polymer Science and Engineering, Sichuan University, Chengdu 610064, China)

机构地区：[1]中国民用航空总局第二研究所,四川成都610207 [2]四川大学高分子科学与工程学院,四川成都610064

出　　处：《高分子材料科学与工程》2018年第4期27-31,共5页Polymer Materials Science & Engineering

摘　　要：近年来,利用环氧化合物与二氧化碳(CO_2)进行共聚反应制备聚碳酸酯(PC)成为绿色合成化学研究的热点领域。文中报道了一种由环境友好的轻金属Li/Al化合物构成的催化体系,可以有效催化环氧环己烷与CO_2的共聚反应,成功合成了一系列不同相对分子质量和窄相对分子质量分布的聚碳酸酯。同时,根据对合成产物的核磁分析,所合成的聚碳酸酯具有双官能度的异官能团端基,可通过简单聚合物链端基的有机反应来实现对聚碳酸酯链的接枝改性。During the recent decades, synthesis of polycarbonates via the copolymerization of carbon dioxide （CO2） with epoxides became one of attractive and important research topics in the green chemistry field. The key point of this research is to discover an efficient catalyst with environment benign characteristics. In this article, a new kind of catalytic system composed of lithium halide salts and alkyl aluminium was successfully developed for catalyzing the copolymerization of CO2 and cyclohexane oxide, by which a series of polycarbonates with different molecular weights and narrow polydispersity indexes （PDI） can be easily synthesized. Meanwhile, the post modification of synthesized polycarbonates can be availably carried out through the reactions of functional terminal groups in the polymer main chain.

关 键 词：金属锂盐 三异丁基铝 二氧化碳 环氧环己烷 聚碳酸酯 

分 类 号：TQ323.41[化学工程—合成树脂塑料工业]