| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a new aromatic polyaryl ether such as an aromatic polyether sulfone, aromatic polyether ketone, etc., having an alkylsulfonic acid and/or its alkali metal salt at its side chain and useful as a polymer electrolyte or polymer electrolyte membrane of a fuel cell, a secondary battery, a capacitor, an ion exchange resin, an ion exchange membrane, a separating membrane, etc. <P>SOLUTION: This new aromatic polyaryl ether has a specific structural unit and is provided by using a new bisphenol compound having an alkyl sulfonic acid and/or its alkali metal salt. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
