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    • 18. 发明申请
    • PROCESSES FOR PRODUCING POLYALKYLENE CARBONATES
    • 生产聚亚烷基碳酸酯的方法
    • US20110218321A1
    • 2011-09-08
    • US13041814
    • 2011-03-07
    • Tobias Heinz SteinkeAnna Katharina OttHans-Helmut Görtz
    • Tobias Heinz SteinkeAnna Katharina OttHans-Helmut Görtz
    • C08G59/68
    • C08G59/68C08G64/34
    • Production of polyalkylene carbonates via polymerization of carbon dioxide with at least one epoxide of the general formula (I): where R re mutually independently H, halogen, NO2, CN, COOR′ or C1-20-hydrocarbon moiety, which can have substitution, where one of the moieties R can also be OH, and where two moieties R can together form a C3-5-alkylene moiety, R′ is H or C1-20-hydrocarbon moiety, which can have substitution; n a zinc salt of C4-8-alkanedicarboxylic acids as catalysts, where a carboxylic acid or an acidic ion exchanger and a non-water-miscible organic solvent which dissolves the polyalkylene carbonate are admixed with the reaction mixture obtained after the reaction, and the organic phase is washed with water, and the polyalkylene carbonate is optionally obtained from the organic phase.
    • 通过二氧化碳与至少一种通式(I)的环氧化物的聚合制备聚亚烷基碳酸酯:其中R相互独立地为氢,卤素,NO2,CN,COOR'或C1-20-烃部分,其可以具有取代基, 其中部分R中的一个也可以是OH,并且其中两个部分R可以一起形成C 3-5 - 亚烷基部分,R'是可以具有取代基的H或C 1-20烃部分; 将C4-8-链烷二羧酸的Na锌盐作为催化剂,其中将羧酸或酸性离子交换剂和溶解聚亚烷基碳酸酯的非水混溶性有机溶剂与反应后获得的反应混合物混合,并将有机物 相用水洗涤,聚碳酸亚烷基酯任选地由有机相获得。