SYNTHESIS OF POLYESTERS BY ENZYMATIC RING-OPENING COPOLYMERIZATION USING LIPASE CATALYST

被引：80

作者：

UYAMA, H

TAKEYA, K

KOBAYASHI, S

机构：

[1] Department of Molecular Chemistry and Engineering, Faculty of Engineering, Tohoku University, Aoba

来源：

PROCEEDINGS OF THE JAPAN ACADEMY SERIES B-PHYSICAL AND BIOLOGICAL SCIENCES | 1993年 / 69卷 / 08期

关键词：

ENZYMATIC POLYMERIZATION; COPOLYMERIZATION; LACTONE; LACTIDE; LIPASE; POLYESTER;

D O I：

10.2183/pjab.69.203

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Enzymatic ring-opening copolymerization of lactones was carried out by using Pseudomonas fluorescens lipase in bulk. In the copolymerizaton of epsilon-caprolactone (epsilon-CL) and delta-valerolactone at 60 degrees C for 10 days a copolymer with molecular weight of 3.7x10(3) was obtained and its structure was found to be of random structure having both units from C-13 NMR analysis. Effects of the feed ratio, the reaction time and temperature on the copolymerization have been examined. The enzymatic copolymerization of epsilon-CL with other lactones and D-lactide also gave corresponding copolymers.

引用

页码：203 / 207

页数：5

共 11 条

[1]

FOUQUE E, 1989, SYNTHESIS-STUTTGART, P661

[2]

KITAZUME T, 1988, CHEM EXPRESS, V3, P1354

[3] ENZYMATIC POLYESTERIFICATION IN ORGANIC MEDIA - ENZYME-CATALYZED SYNTHESIS OF LINEAR POLYESTERS .1. CONDENSATION POLYMERIZATION OF LINEAR HYDROXYESTERS .2. RING-OPENING POLYMERIZATION OF EPSILON-CAPROLACTONE [J].