A phase separable polycarbonate polymerization catalyst
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Polyisobutylene is shown to be a nonpolar phase tag that separates a highly colored salen Cr(III) complex from products but is otherwise kinetically similar to a low molecular weight salen Cr(III) complex in polycarbonate formation by Cr(III)-catalyzed copolymerization of CO2 and cyclohexene oxide.
author list (cited authors)
Hongfa, C., Tian, J., Andreatta, J., Darensbourg, D. J., & Bergbreiter, D. E.