| 摘要 |
PROBLEM TO BE SOLVED: To provide a proton-conductive film which has excellent heat resistance and excellent durability, exhibits excellent proton conductivity even at high temperatures, and has satisfactory various physical properties such as mechanical performances, for example, flexibility, to provide a method for producing the film, and to provide a fuel battery using the film. SOLUTION: This proton-conductive film, comprising (A) a three-dimensional cross-linked structure having silicon-oxygen bonds, (B) a carbon atom-containing structure, and (C) a proton conductivity-imparting agent, is characterized in that (i) (B) the carbon atom-containing structure has a number-average mol.wt. of 56 to 30,000 and at least four connected carbon atoms in the main chain and (ii) (A) the three-dimensional cross-linked structure and (B) the carbon atom-containing structure are bonded to each other through covalent bonds. The method for producing the proton-conductive film comprises producing a film from a mixture comprising (D) a carbon atom-containing structure composition having two or more hydrolysable silyl groups and (C) the proton conductivity-imparting agent, and then subjecting the film to hydrolysis and condensation reactions. |
