The Polymer Society of Korea

고분자 합성

포스터발표

Double Metal Cyanide Catalysts Bearing Organosilicon Complexing Agents for the Copolymerization of CO₂ and Epoxides to Produce Polycarbonate Polyols

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The conversion of CO₂ into value-added products via N-formylation of amines, CO₂ hydrogenation, and CO₂ fixation to epoxides is an effective method for reducing global CO₂ emissions. Among these methods, the copolymerization of CO₂ with epoxides is particularly promising, producing polycarbonates with significant industrial applications. In this study, we prepared a series of double metal cyanide(DMC) catalysts using organosilicon complexing agents(CAs) for the ring-opening copolymerization(ROP) of CO₂ and epoxides. We investigated the impact of silicon CAs on crystal structures and textural properties of DMC catalysts, as well as their activity and selectivity in producing polycarbonate polyols. The catalysts demonstrated high activity for the ROP(TOF of 400–600h⁻¹), yielding polycarbonate polyols with high yields(70–90%) and significant carbonate content(up to 60%), suitable for use as telechelic polymers in the design of novel polymers.

1PS-237

2005-10-14 10:30 - 15:30