| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a new polyarylene-based copolymer which has improved heat-resistance and is excellent in proton conductivity, and further is excellent in durability or chemical stability. <P>SOLUTION: An aromatic compound is expressed by formula (2) (wherein A, D are each a direct bond, -CO-, -SO<SB>2</SB>- or the like; R<SP>1</SP>-R<SP>16</SP>are each hydrogen, fluorine, alkyl or the like; and R is a divalent organic group including a nitrogen-containing aromatic ring structure; X is halogen excluding fluorine; H<SB>01</SB>shows at least one structure chosen from structures represented by formula (3) and the R; l, m are each an integer of 0-4; n, p are each a composition ratio, and n+p=1 provided that n, p are not 0 together; and q is a positive integer). <P>COPYRIGHT: (C)2010,JPO&INPIT |
