Incorporation of ether linkage in CO2/propylene oxide copolymerization by dual catalysis

被引：32

作者：

Varghese, Jobi Kodiyan ^{[1
]}

Cyriac, Anish ^{[1
]}

Lee, Bun Yeoul ^{[1
]}

机构：

[1] Ajou Univ, Dept Mol Sci & Technol, Suwon 443749, South Korea

来源：

POLYHEDRON | 2012年 / 32卷 / 01期

关键词：

CO2/epoxide copolymerization; Poly(propylene carbonate-co-propylene oxide); DMC catalyst; Chain shuttling; Dual catalysis; OLEFIN BLOCK-COPOLYMERS; METAL CYANIDE COMPLEXES; PROPYLENE-OXIDE; CARBON-DIOXIDE; ALTERNATING COPOLYMERIZATION; CO2/EPOXIDE COPOLYMERIZATION; POLYCARBONATE SYNTHESIS; COBALT(III) COMPLEX; CYCLOHEXENE OXIDE; HIGHLY EFFICIENT;

D O I：

10.1016/j.poly.2011.05.022

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Carbon dioxide (CO2)/propylene oxide copolymerization using dual catalyst composed of Salen-cobalt(III) complex bearing four quaternary ammonium salts (a highly active poly(propylene carbonate) catalyst) and a double metal cyanide (DMC, a highly active poly(propylene oxide) catalyst) afforded poly(propylene carbonate-co-propylene oxide) through shuttling of the growing polymer chains between the two catalyst sites. Results of H-1 NMR, C-13 NMR, DSC studies supported formation of genuine poly(propylene carbonate-co-propylene oxide), not a mixture of poly(propylene carbonate) and poly(propylene oxide). The carbonate fraction was variable by tuning the ratio of the two catalysts and the CO2 pressure. (c) 2011 Elsevier Ltd. All rights reserved.

引用

页码：90 / 95

页数：6

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