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    • 1. 发明公开
    • 관능화 플루오로단량체의 수성 유화중합
    • 功能性荧光体的水性乳液聚合
    • KR1020060118518A
    • 2006-11-23
    • KR1020067010421
    • 2004-10-08
    • 쓰리엠 이노베이티브 프로퍼티즈 컴파니
    • 탈러,아른힌트저,클라우스로카스,카이,에이치.메르즈,프랜즈햄록,스티븐,제이.
    • C08F214/18C08F214/00
    • C08F214/18C08F214/184
    • A method is provided for aqueous emulsion co-polymerization of two or more fluoromonomers comprising the steps of: 1) forming an aqueous pre- emulsion by mixing a fluoromonomer according to formula I: F2 C=CF-R1-SO2X (I) wherein R1 is a branched or unbranched perfluoroalkyl, perfluoroalkoxy or perfluoroether group comprising 1-15 carbon atoms and 0-4 oxygen atoms and wherein X is F, Cl or Br, together with 0.001-0.9 molar equivalents of a base, in the absence of added emulsifier; and 2) reacting the pre-emulsion with one or more perfluorinated comonomers in the absence of added emulsifier so as to form a fluoropolymer latex comprising a fluoropolymer wherein more than 1 mol% of monomer units are derived from the fluoromonomer according to formula I. In another aspect, the present invention provides a fluoropolymer derived from the fluoropolymer latex made according to the method of the present invention which is free of added emulsifier. In another aspect, the present invention provides a polymer electrolyte membrane comprising the fluoropolymer made according to the method of the present invention which is free of added emulsifier.
    • 提供了一种用于两种或更多种含氟单体的水乳液共聚的方法,包括以下步骤:1)通过混合式I的氟单体形成水性预乳液:F2C = CF-R1-SO2X(Ⅰ)其中R1 是在不存在添加的乳化剂的情况下,包含1-15个碳原子和0-4个氧原子的支链或非支链全氟烷基,全氟烷氧基或全氟醚基团,其中X是F,Cl或Br,以及0.001-0.9摩尔当量的碱 ; 和2)在不存在加入的乳化剂的情况下使预乳液与一种或多种全氟化共聚单体反应,以便形成含氟聚合物的含氟聚合物胶乳,其中大于1mol%的单体单元衍生自根据式I的含氟单体。 另一方面,本发明提供了衍生自根据本发明的方法制备的含氟聚合物胶乳的氟聚合物,其不含添加的乳化剂。 另一方面,本发明提供了一种聚合物电解质膜,其包含根据本发明的方法制备的含氟聚合物,其不含添加的乳化剂。