METHOD FOR PRODUCING POLYCARBONATE USING METAL COMPLEX, THE METAL COMPLEX, AND CATALYST SYSTEM INCLUDING THE METAL COMPLEX

摘要

PROBLEM TO BE SOLVED: To provide a method for producing polycarbonate using a metal complex, the metal complex useful for producing the polycarbonate from an epoxide compound and carbon dioxide, and a catalyst system including the metal complex.;SOLUTION: In the method for producing the polycarbonate, copolymerization of the epoxide compound and carbon dioxide is carried out in the presence of the metal complex comprising a quadrivalent metal and divalent/trivalent tetradentate ligands, which are subjected to tetradentate coordination with the quadrivalent metal via one or more kinds of hetero atoms selected from the group consisting of nitrogen, oxygen, sulfur and phosphorus. The catalyst system including the metal complex and a cocatalyst, and a novel metal complex are also provided.;COPYRIGHT: (C)2012,JPO&INPIT