| 摘要 |
PROBLEM TO BE SOLVED: To provide a simple and efficient method for producing a polymer sulfonic acid ester. SOLUTION: The method for producing a polymer sulfonic acid ester comprises reacting a polymer sulfonic acid with an orthocarboxylic acid triester represented by formula (1) (wherein X is a hydrogen atom, an alkyl group, a haloalkyl group, an alkenyl group or an alkynyl group; and R is an alkyl group, an alkenyl group, an alkynyl group, an aliphatic cycle, an aromatic ring or a heterocycle). COPYRIGHT: (C)2006,JPO&NCIPI
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