Study on the transesterification of poly(β-hydroxybutyrate) and poly(ε-caprolactone)

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

Research output: Journal article publicationJournal articleAcademic researchpeer-review

3 Citations (Scopus)


The transesterification of poly(β-hydroxybutyrate) (PHB) and poly(ε-caprolactone) (PCL) was carried out by using stannous octoate as catalyzer in liquid phase. The effects of reaction conditions on the transesterification, including reaction temperature, reaction time and catalyzer content, were investigated. The sequence distribution, crystallization behavior and thermal stability of PHB-co-PCL copolyesters were studied by 13C-NMR, FTIR, DSC, WAXD and TGA. The results showed that the transesterification of PHB with PCL was confirmed to produce a block copolymer, and enhancing reaction temperature and increasing reaction time were advantageous to the transesterification. With the increase in PCL content in the block copolymer, the crystallization behavior of PHB-co-PCL copolyesters changed evidently. On the other hand, the introduction of PCL segment into PHB chains did not change its crystalline structure; moreover, thermal stability of PHB-co-PCL copolyesters was a little improved in air, comparing with that of pure PHB.
Original languageEnglish
Pages (from-to)142-148
Number of pages7
JournalActa Polymerica Sinica
Issue number2
Publication statusPublished - 1 Apr 2002
Externally publishedYes


  • Copolyesters
  • Poly(β-hydroxybutyrate)
  • Poly(ε-caprolactone)
  • Transesterification

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Polymers and Plastics

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