Lipase‐catalyzed polycondensation of dicarboxylic acid–divinyl esters and glycols to aliphatic polyesters

来自 Wiley

阅读量:

28

作者:

H UyamaS YaguchiS Kobayashi

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摘要:

Abstract Lipase-catalyzed polymerization of dicarboxylic acid&ndash;divinyl esters with glycols has been performed. The vinyl esters used were divinyl adipate and divinyl sebacate. Lipases derived from Candida antarctica , Mucor miehei , Pseudomonas cepacia , and P . fluorescens showed high catalytic activity toward the present polymerization. Effects of solvent, reaction temperature, and enzyme amount were systematically investigated. A combination of divinyl adipate, 1,4-butanediol, and P . cepacia lipase afforded the highest molecular weight (2.1 &times; 10<sup>4</sup>). The yield of the polymer from divinyl sebacate was higher than that from divinyl adipate, whereas the opposite tendency was observed in the polymer molecular weight. Methylene chain length of &alpha;,&omega;-alkylene glycol also affected the polymerization behavior. The enzymatic polymerization of divinyl sebacate with cis -2-butene-1,4-diol and 2-butyne-1,4-diol resulted in the polymer containing unsaturated group in the polymer backbone. &copy; 1999 John Wiley & Sons, Inc. J Polym Sci A: Polym Chem 37: 2737&ndash;2745, 1999

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DOI:

10.1002/(SICI)1099-0518(19990801)37:15<2737::AID-POLA7>3.0.CO;2-

被引量:

50

年份:

2015

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