| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for safely producing a sulfo-containing polyarylene through easily controlling the introducing amount and position of sulfo groups into the original polymer, to provide the sulfo-containing polyarylene, to provide a polyarylene and an aromatic sulfonic acid ester derivative to be suitably used in the production method, and to provide a solid polymer electrolyte and a proton conductive membrane each comprising the the sulfo-containing polyarylene. <P>SOLUTION: The aromatic sulfonic acid ester derivative is represented by the formula(1)[ wherein, X is a halogen atom except fluorine atom, -OSO<SB>3</SB>CH<SB>3</SB>or -OSO<SB>3</SB>CF<SB>3</SB>; A and B are each a bivalent organic group; R<SP>a</SP>is a 4-20C hydrocarbon group; Ar is an aromatic group having the substituent:-SO<SB>3</SB>R<SP>b</SP>( R<SP>b</SP>is a 4-20C hydrocarbon group ); m and n are each 0-10, (m+n)≥1; and k is 1-4 ]. The method for producing the sulfo-containing polyarylene comprises carrying out a coupling polymerization of aromatic compound(s) including at least the derivative of the formula(1) to form the polyarylene, which is then hydrolyzed. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
