| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an improved polymer electrolyte film fuel cell having longer service life and better performance. <P>SOLUTION: Functionalized polyazoles having recurring imidazole units of general formula (1a) and/or general formula (1b) and/or general formula (1c) and/or general formula (2) are used for a polymer electrolyte film, wherein radicals Ar, Ar<SP>1</SP>and Ar<SP>2</SP>are tetravalent, divalent or trivalent aromatic group or heteroaromatic group respectively, Y is a chemical bond or a group having 1 to 20 carbon atoms, v is an integer of 1 to 10, Z is a group of general formula (3) or general formula (4) wherein R<SP>1</SP>and R<SP>2</SP>are each carbon atom and a group having or 1-20 carbon atoms. <P>COPYRIGHT: (C)2011,JPO&INPIT |
