| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an evaluation method of an ion-conductive membrane for evaluating a simple ion conductivity value, and to provide an ion-conductive film having a high proton conductivity value and a manufacturing method of the ion-conductive membrane. <P>SOLUTION: Ion conductivity is evaluated by measuring the relaxation time of an ion-conductive electrolyte membrane made of a cation exchange film by NMR. Then, the ion-conductive film has a resin thin film composed of a macromolecular main chain made of monomer units that are combined by covalent bond, at least one crosslinking agent that is combined with the macromolecular main chain and is selected from a group consisting of ethyleneglycoldimetacrylate, etyleneglycoldivinylether, and 1,6- hexandioldivinylether, and a side chain group that is made of a reaction product with styrene and a benzene ring originating from the styrene is subjected to sulfonation. <P>COPYRIGHT: (C)2003,JPO |
