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Selective Formation of Polycarbonate over Cyclic Carbonate: Copolymerization of Epoxides with Carbon Dioxide Catalyzed by a Cobalt(III) Complex with a Piperidinium End‐Capping Arm
Author(s) -
Nakano Koji,
Kamada Toshihiro,
Nozaki Kyoko
Publication year - 2006
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200603132
Subject(s) - copolymer , polycarbonate , epoxide , cobalt , carbonate , catalysis , polymer chemistry , carbon dioxide , chemistry , materials science , organic chemistry , polymer
Sidestepping a cyclic side product : Copolymerization of terminal epoxides with CO 2 was investigated by using a cobalt(III) complex bearing a piperidinium end‐capping arm and a piperidinyl arm (see scheme; DME=1,2‐dimethoxyethane). The catalyst system can selectively produce copolymers without contaminant formation of cyclic carbonates even at high conversion of the epoxide (>99 %).