Lipase-catalyzed synthesis and curing of high-molecular-weight polyricinoleate

被引：61

作者：

Ebata, Hiroki ^{[1
]}

Toshima, Kazunobu ^{[1
]}

Matsumura, Shuichi ^{[1
]}

机构：

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

来源：

MACROMOLECULAR BIOSCIENCE | 2007年 / 7卷 / 06期

关键词：

biodegradability; curing; crosslinking; lipase; polycondensation; polyricinoleate;

D O I：

10.1002/mabi.200700018

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：

High-molecular-weight polyricinoleate, with an (M)(w), of 100 600, was enzymatically prepared by the polycondensation of methylricinoleate using immobilized lipase from Pseudomonas cepacia (IM-PC) in bulk in the presence of 4 angstrom molecular sieves at 80 degrees C for 7 d. Polyricinoleate was a viscous liquid at room temperature with a glass transition temperature (T-g) of -74.8 degrees C, showed no crystallinity and was biodegraded by activated sludge. Polyricinoleate was readily cured using a dicumyl peroxide at 170 degrees C for 30 min to produce a chloroform insoluble crosslinked polyricinoleate with a hardness of 50A using durometer A.

引用

页码：798 / 803

页数：6

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