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Cobalt‐Based Complexes for the Copolymerization of Propylene Oxide and CO 2 : Active and Selective Catalysts for Polycarbonate Synthesis
Author(s) -
Qin Zengquan,
Thomas Christophe M.,
Lee Stephen,
Coates Geoffrey W.
Publication year - 2003
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.200352605
Subject(s) - polycarbonate , propylene oxide , propylene carbonate , cobalt , copolymer , catalysis , regioselectivity , raw material , carbonate , chemistry , materials science , organic chemistry , polymer chemistry , polymer , ethylene oxide , electrochemistry , electrode
CO 2 is an ideal feedstock for chemical synthesis; unfortunately its thermodynamic stability is a barrier to widespread use. Active cobalt catalysts for the copolymerization of propylene oxide and CO 2 are reported (see scheme; L= N , N ′‐bis(3,5‐di‐ tert ‐butylsalicylidene)‐1,2‐cyclohexanediamine), which have excellent regioselectivity for polycarbonate synthesis without concomitant production of cyclic carbonate by‐products.