Alternating copolymerization of CO2 and propylene oxide catalyzed by CoIII(salen)/Lewis base

被引：127
|
作者：
Paddock, RL
Nguyen, ST
机构：
[1] Northwestern Univ, Dept Chem, Evanston, IL 60208 USA
[2] Northwestern Univ, Inst Environm Catalysis, Evanston, IL 60208 USA
来源：
MACROMOLECULES | 2005年 / 38卷 / 15期
关键词：
D O I：
10.1021/ma047551k
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
The use of Co III(salen)/Lewis base catalyst system for copolymerization of CO 2 and propylene oxide was analyzed. The ratio of catalyst to Lewis base cocatalyst influenced the TOF. The use of Lewis base cocatalyst enables high catalytic activity at low CO 2 pressure and affords superior enantioselectivity. The results show that the use of cocatalyst produced a highly alternating monodisperse polycarbonate product without concomitant cyclic carbonate production.
引用
收藏
页码：6251 / 6253
页数：3
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