STRUCTURE AND PROPERTIES OF POLY(3-HYDROXYBUTYRATE-CO-4-HYDROXYBUTYRATE) PRODUCED BY ALCALIGENES LATUS

被引：35
|
作者：
KANG, CK [1 ]
KUSAKA, S [1 ]
DOI, Y [1 ]
机构：
[1] AKEBONO R&D CTR,HANYUU,SAITAMA 348,JAPAN
来源：
BIOTECHNOLOGY LETTERS | 1995年 / 17卷 / 06期
关键词：
D O I：
10.1007/BF00129382
中图分类号：
Q81 [生物工程学（生物技术）]; Q93 [微生物学];
学科分类号：
071005 ; 0836 ; 090102 ; 100705 ;
摘要：
Random copolymers of 3-hydroxybutyrate (3HB) and 4-hydroxybutyrate (4HB) with a wide range of compositions varying from 0 to 83 mol% 4HB were produced by Alcaligenes latus from the mixed carbon substrates of 3-hydroxybutyric and 4-hydroxybutyric acids. The structure and physical properties of P(3HB-co-4HB) were characterized by H-1 and C-13 NMR spectroscopy, gel-permeation chromatography, and differential scanning calorimetry. The isothermal radial growth rates of spherulites of P(3HB-co-4HB) were much slower than the rate of P(3HB) homopolymer. The enzymatic degradation rates of P(3HB-co-4HB) films by a PHB depolymerase were strongly influenced by the copolymer composition.
引用
收藏
页码：583 / 588
页数：6
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