STEREOSELECTIVE ALTERNATING COPOLYMERIZATION OF EPOXIDE AND CARBON DIOXIDE

摘要

PROBLEM TO BE SOLVED: To provide a catalytic compound with which one kind of an epoxide optical isomer and carbon dioxide is enantio-selectively polymerized by using a racemic mixture of chiral epoxide and polycarbonate is produced from an epoxide source material at an extremely high conversion rate.;SOLUTION: A production method of a polycarbonate copolymer is provided, comprising copolymerization of an epoxide compound as a monomer source material with carbon dioxide in the presence of a cobalt-Schiff base complex having a tetradentate ligand with O, N, N and O as coordination atoms, wherein the cobalt-Schiff base complex is a compound expressed by formula (I).;COPYRIGHT: (C)2010,JPO&INPIT