The kinetics of the thermal decomposition of poly(3-hydroxybutyrate) and maleated poly(3-hydroxybutyrate)

被引：28

作者：

Chen, C ^{[1
]}

Fei, B ^{[1
]}

Peng, SW ^{[1
]}

Zhuang, YG ^{[1
]}

Dong, LS ^{[1
]}

Feng, ZL ^{[1
]}

机构：

[1] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Polymer Phys & Chem Lab, Changchun 130022, Peoples R China

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 2002年 / 84卷 / 09期

关键词：

poly(3-hydroxybutyrate); biodegradable; decomposition;

D O I：

10.1002/app.10463

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The thermal decomposition mechanism of maleated poly(3-hydroxybutyrate) (PHB) was investigated by FTIR and H-1 NMR. The results of experiments showed that the random chain scission of maleated PHB obeyed the six-membered ring ester decomposition process. The thermal decomposition behavior of PHB and maleated PHB with different graft degree were studied by thermogravimetry (TGA) using various heating-up rates. The thermal stability of maleated PHB was evidently better than that of PHB. With increase in graft degree, the thermal decomposition temperature of maleated PHB gradually increased and then declined. Activation energy E. as a kinetic parameter of thermal decomposition was estimated by the Flynn-Wall-Ozawa and Kissinger methods, respectively. It could be seen that approximately equal values of activation energy were obtained by both methods. (C) 2002 Wiley Periodicals, Inc.

引用

页码：1789 / 1796

页数：8

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