GAS-CHROMATOGRAPHIC, LIQUID-CHROMATOGRAPHIC AND GAS-CHROMATOGRAPHIC MASS-SPECTROMETRIC IDENTIFICATION OF DEGRADATION PRODUCTS IN ACCELERATED AGED MICROBIAL POLYHYDROXYALKANOATES

被引：19

作者：

KARLSSON, S ^{[1
]}

SARES, C ^{[1
]}

RENSTAD, R ^{[1
]}

ALBERTSSON, AC ^{[1
]}

机构：

[1] ROYAL INST TECHNOL, DEPT POLYMER TECHNOL, S-10044 STOCKHOLM, SWEDEN

来源：

JOURNAL OF CHROMATOGRAPHY A | 1994年 / 669卷 / 1-2期

关键词：

D O I：

10.1016/0021-9673(94)80341-2

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

The degradation products of alkaline hydrolysed poly(beta-hydroxybutyrate) (PHB) and its copolymer with poly(beta-hydroxyvalerate) were monitored using GC and LC. The one major degradation product detected was crotonic acid, a well known degradation product of 3-hydroxybutyrate, Using headspace GC-MS, volatile products were identified in thermo-oxidized native polyesters, e.g. 2-ethoxyethyl acetate and acetaldehyde in addition to crotonic acid. There is an inverse relationship between the amount of crotonic acid produced in thermo-oxidized samples of PHB and the average number-average molecular mass as shown by size-exclusion chromatography.

引用

页码：97 / 102

页数：6

共 20 条

[1] SUSCEPTIBILITY OF ENHANCED ENVIRONMENTALLY DEGRADABLE POLYETHYLENE TO THERMAL AND PHOTOOXIDATION [J].