Polymer electrolyte, proton-conducting membranes and membrane - electrode structure

    公开(公告)号:JP4283125B2

    公开(公告)日:2009-06-24

    申请号:JP2004015864

    申请日:2004-01-23

    CPC classification number: Y02E60/50

    Abstract: PROBLEM TO BE SOLVED: To provide a polymer electrolyte having improved hot water resistance and radical resistance, a proton conductive membrane comprising the polymer electrolyte, and a membrane-electrode assembly including the proton conductive membrane. SOLUTION: The polymer electrolyte comprises at least one polymer selected from polyether, polyketone, polyetherketone, polysulfone, polyethersulfone, polyimide, polyetherimide, polybenzimidazole, polybenzothiazole, polybenzoxazole and the like, wherein the polymer comprises a repeating structural unit with either or both of an aromatic ring and a heterocyclic ring, and a repeating structural unit represented by the formula (1). In the formula, X is a single bond, an electron-attracting group or an electron-donating group; R is a single bond, -(CH 2 ) q - or -(CF 2 ) q - where q is 1-10; m is 0-10; k is 0-5; 1 is 0-4; and k+l≥1. COPYRIGHT: (C)2004,JPO&NCIPI

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