| 초록 |
Over the past several decades, double metal cyanide (DMC) materials have become choice catalysts in the ring-opening polymerization of epoxides, specifically propylene oxide, the copolymerization of CO2 and epoxides, the cycloaddition of CO2 to epoxides, and the ring-opening of epoxides with amines. Electron donating complexing agents are one of the key components to achieve active catalysts for these reactions. Considering there are a lot of commercial plants using the DMC catalysis, it is surprising that the understanding of mechanistic pathways are still in infancy stage and at least needed to be rectified. Intrinsically insoluble nature of catalyst makes it difficult to perform detailed spectroscopic studies. In this presentation various DMC-catalyzed reactions, specifically ring-opening polymerizations of epoxides, are to be introduced, emphasizing both mechanistic insights and commercial feasibility. |
