| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing a soluble branched-chained polyester under simple and mild conditions. SOLUTION: A dicarboxylic acid or a dicarboxylic acid derivative having <=1,000 molecular weight is reacted with a trifunctional or polyfunctional aliphatic alcohol having <=1,000 molecular weight in the presence of a hydrolase such as lipase.
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