NON-METAL CATALYST FOR SYNTHESIZING POLYCARBONATE BY CO2 AND PREPARATION METHOD THEREFOR

    公开(公告)号:US20230415138A1

    公开(公告)日:2023-12-28

    申请号:US18210657

    申请日:2023-06-16

    CPC classification number: B01J31/06 C08G64/34 B01J37/08

    Abstract: A non-metal catalyst for synthesizing polycarbonate by CO2 and a preparation method therefor are provided. The preparation method of the non-metal catalyst includes the following steps: dissolving a hydroxyl functionalized organic ammonium halide monomer, a quaternary phosphonium salt monomer, and a hydroxyl functionalized imidazole salt monomer in a solvent, and polymerizing the mixture under the action of an initiator to obtain the non-metal catalyst for synthesizing the polycarbonate by using CO2. The non-metal catalyst prepared by the present invention is used as a heterogeneous catalytic material, is applied to a system for preparing polycarbonate by a one-step copolymerization reaction of CO2 and an epoxy compound, has high catalytic activity, does not need an additional cocatalyst or a solvent, efficiently converts CO2 into the polycarbonate, has no impurities such as metal in the product, and has the advantages of easy separation, recycling, and the like.

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