Fluoropolymers And Membranes Prepared From Such Polymers, In Particular For Fuel Cells and Method For Synthesizing Such Polymers
    1.
    发明申请
    Fluoropolymers And Membranes Prepared From Such Polymers, In Particular For Fuel Cells and Method For Synthesizing Such Polymers 有权
    由这样的聚合物,特别是燃料电池制备的含氟聚合物和膜以及用于合成这种聚合物的方法

    公开(公告)号:US20080051479A1

    公开(公告)日:2008-02-28

    申请号:US11577011

    申请日:2005-10-14

    IPC分类号: C08J5/20 B01J39/20

    摘要: The invention concerns fluoropolymers comprising at least one repeat unit of formula (I): wherein: groups X and Y, identical or different, represent H or F; group Z represents F or a perfluorinated alkyl group; group W represents CH2O or CF2O or CO2; group Ar represents a divalent group including at least one optionally substituted carbon-containing aromatic cycle; group Q represents a single bond, (CF2)n with 1≦n≦10, or C2F4OC2F4; group G represents a cation exchanging group, preferably selected among: SO2R1, with R1 representing OH, F or Cl; or P(═O) (OR2)2 with R2 representing H or an optionally substituted alkyl group; or CO2H and having ion exchange capacity not less than 0.5 meq/g polymer. The method of synthesis, the membranes obtained using these polymers and the fuel cell systems containing such membranes are also part of the invention.

    摘要翻译: 本发明涉及包含至少一种式(I)重复单元的含氟聚合物:其中:X和Y基团相同或不同,表示H或F; 基团Z表示F或全氟化烷基; 基团W表示CH 2 O或CF 2 O或CO 2 H; 基团Ar表示包括至少一个任选取代的含碳芳族环的二价基团; 基团Q表示单键,其中1≤N= 10,或C 2 F 4 2 基团G表示阳离子交换基团,优选选自:SO 2 R 1 R 1,其中R 1代表OH,F或Cl; 或P(-O)(OR 2)2,其中R 2代表H或任选取代的烷基; 或CO 2 H,并且具有不小于0.5meq / g聚合物的离子交换容量。 合成方法,使用这些聚合物获得的膜和含有这种膜的燃料电池系统也是本发明的一部分。