Lipase-catalyzed transformation of poly(ε-caprolactone) into cyclic dicaprolactone

被引：47

作者：

Ebata, H ^{[1
]}

Toshima, K ^{[1
]}

Matsumura, S ^{[1
]}

机构：

[1] Keio Univ, Fac Sci & Technol, Kohoku Ku, Yokohama, Kanagawa 2238522, Japan

来源：

BIOMACROMOLECULES | 2000年 / 1卷 / 04期

关键词：

D O I：

10.1021/bm000059y

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

The enzymatic degradation and polymerization using an enzyme were carried out with respect to the establishment of a sustainable chemical recycling system for poly(epsilon -caprolactone) (PCL) which is a typical biodegradable synthetic plastic. The enzymatic transformation of PCL having an M-n of 110 000 using Candida antarctica lipase (lipase CA) in water-containing toluene at 40 degreesC afforded the corresponding cyclic dicaprolactone (DCL, 1,8-dioxacyclotetradecane-2,9-dione) in a yield of up to 97%. Thus the obtained DCL readily polymerized again using both the fresh and recovered lipase CAs.

引用

页码：511 / 514

页数：4

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