| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a proton conductive film excellent in resistance to methanol solubility, film formability and the like. <P>SOLUTION: The proton conductive film is obtained by (1) subjecting (A) an amino group-containing silicon alkoxide, (B) an amino group-free silicon alkoxide, (C) a metal alkoxide containing at least one of titanium, aluminum and zirconium, and (D) a phosphoric acid compound or a phosphorous acid compound to hydrolysis and condensation to prepare a first solution containing a metal oxide derivative, (2) adding the first solution to a solution containing an organic proton conductive polymer having a specific glass transition temperature to prepare a second solution containing the organic proton conductive polymer and the metal oxide derivative, and (3) casting the second solution, and has a reduction ratio of the storage modulus at a temperature (T) to the storage modulus at 30°C of ≤90%. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
