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    • 9. 发明授权
    • Production of poly(carbonate-co-ester) copolymers
    • 聚(碳酸酯 - 共 - 酯)共聚物的生产
    • US06486294B1
    • 2002-11-26
    • US09683807
    • 2002-02-19
    • Hans-Peter BrackJan Pleun Lens
    • Hans-Peter BrackJan Pleun Lens
    • C08G6400
    • C08G63/64
    • A poly(carbonate-co-ester) block copolymer is synthesized using synthetic strategies that can be incorporated into conventional melt facilities that are commonly used in the production of polycarbonate polymers. The polycarbonate block of the poly(carbonate-co-ester) copolymer is derived from a polycarbonate reaction mixture comprising an aromatic dihydroxy compound and a carbonic acid diester, such as bisphenol A and diphenyl carbonate, respectively. The second block of the copolymer is derived from a polyester prepolymer, the polyester prepolymer comprising a diol, diacid or diester, and at least one monomer that is selected to advantageously incorporate desired properties into the poly(carbonate-co-ester) copolymer. The polyester prepolymer is introduced to the polycarbonate reaction mixture to form the poly(carbonate-co-ester) copolymer. Properties of the copolymer can be altered by varying numerous conditions of the reaction.
    • 使用可以结合到通常用于生产聚碳酸酯聚合物的常规熔融设备中的合成策略来合成聚(碳酸酯 - 共 - 酯)嵌段共聚物。 聚(碳酸酯 - 共 - 酯)共聚物的聚碳酸酯嵌段衍生自包含芳族二羟基化合物和碳酸二酯的聚碳酸酯反应混合物,例如双酚A和碳酸二苯酯。 共聚物的第二嵌段衍生自聚酯预聚物,聚酯预聚物包含二醇,二酸或二酯,以及至少一种选择以有利地将所需性质并入聚(碳酸酯 - 共酯)共聚物中的单体。 将聚酯预聚物引入聚碳酸酯反应混合物中以形成聚(碳酸酯 - 共 - 酯)共聚物。 通过改变多种反应条件可以改变共聚物的性质。