文章摘要
金属锂盐-烷基铝活性阴离子聚合体系催化环氧环己烷与CO2共聚反应
Copolymerization of Carbon Dioxide and Cyclohexane Oxide Catalyzed by Lithium Salts in the Presence of Alkyl Aluminium
  
DOI:10.16865/j.cnki.1000-7555.2018.04.005
中文关键词: 金属锂盐  三异丁基铝  二氧化碳  环氧环己烷  聚碳酸酯
英文关键词: lithium salt  iso-butyl aluminium  carbon dioxide  cyclohexane oxide  polycarbonate
基金项目:
作者单位
叶李薇1,2, 彭华乔1, 杨 刚2, 张东岳2, 夏祖西1 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 
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中文摘要:
      近年来,利用环氧化合物与二氧化碳(CO2)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CO2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。
英文摘要:
      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.
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