摘要 |
<P>PROBLEM TO BE SOLVED: To provide a novel material exerting a new function prepared by using a polyimide film showing an excellent heat resistance, chemical resistance and mechanical strength as a substrate, and a proton-conducting membrane showing a heat resistance and a proton conductivity prepared by using the polyimide film as a substrate. <P>SOLUTION: The composite material comprising the polyimide porous membrane is obtained by filling a highly heat-resistant organic material and/or inorganic material in pores of the polyimide porous membrane and retaining its shape through a physical and/or chemical interaction. The proton-conducting membrane is prepared by filling a monomer or macromonomer which serves as a precursor of a highly heat-resistant, proton-conducting polymer in the pores of the polyimide porous membrane and inducing chemical reaction such as polymerization and crosslinking to generate the polymer. <P>COPYRIGHT: (C)2004,JPO |