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

G. Chen, Bin Fei, Shuwen Peng, Yugang Zhuang, Lisong Dong, Zhiliu Feng

Research output: Journal article publicationJournal articleAcademic researchpeer-review

27 Citations (Scopus)

Abstract

The thermal decomposition mechanism of maleated poly(3-hydroxybutyrate) (PHB) was investigated by FTIR and 1H 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 Ea 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. J. Appl. Polym. Sci.
Original languageEnglish
Pages (from-to)1789-1796
Number of pages8
JournalJournal of Applied Polymer Science
Volume84
Issue number9
DOIs
Publication statusPublished - 6 Mar 2002
Externally publishedYes

Keywords

  • Biodegradable
  • Decomposition
  • Poly(3-hydroxybutyrate)

ASJC Scopus subject areas

  • Chemistry(all)
  • Surfaces, Coatings and Films
  • Polymers and Plastics
  • Materials Chemistry

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