Nonisothermal crystallization and melting behavior of poly(3-hydroxybutyrate) and maleated poly(3-hydroxybutyrate)

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

Research output: Journal article publicationJournal articleAcademic researchpeer-review

61 Citations (Scopus)

Abstract

Nonisothermal crystallization and melting behavior of poly(3-hydroxybutyrate) (PHB) and maleated PHB were investigated by differential scanning calorimetry using various cooling rates. The results show that the crystallization behavior of maleated PHB from the melt greatly depends on cooling rates and its degree of grafting. With the increase in cooling rate, the crystallization process for PHB and maleated PHB begins at lower temperature. For maleated PHB, the introduction of maleic anhydride group hinders its crystallization, causing crystallization and nucleation rates to decrease, and crystallite size distribution becomes wider. The Avrami analysis, modified by Jeziorny, was used to describe the nonisothermal crystallization of PHB and maleated PHB. Double melting peaks for maleated PHB were observed, which was caused by recrystallization during the heating process.
Original languageEnglish
Pages (from-to)1663-1670
Number of pages8
JournalEuropean Polymer Journal
Volume38
Issue number8
DOIs
Publication statusPublished - 1 Aug 2002
Externally publishedYes

Keywords

  • Maleated PHB
  • Melting behavior
  • Nonisothermal crystallization
  • Poly(3-hydroxybutyrate)

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Polymers and Plastics
  • Organic Chemistry

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