| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for manufacturing a sulfonic acid group-containing block copolymer that is able to inhibit an ether exchange reaction and is commercially advantageous. <P>SOLUTION: The method for manufacturing a proton acid group-containing block copolymer comprises dissolving a terminal hydroxyl group-containing and proton acid group-containing poly(ether sulfone) oligomer, a terminal hydroxyl group-containing and proton acid group-noncontaining poly(ether sulfone) oligomer, a chain extender which acts as a linkage part between the oligomers by combining with the terminal hydroxyl group of the oligomers and a base into a solvent, and heating it at a temperature of ≤120°C. <P>COPYRIGHT: (C)2010,JPO&INPIT |
