Modified poly(3-hydroxybutyrate-co-3-hydroxyvalerate) using hydrogen bonding monomers

Bin Fei, Cheng Chen, Hang Wu, Shuwen Peng, Xiuyan Wang, Lisong Dong, John Haozhong Xin

Research output: Journal article publicationJournal articleAcademic researchpeer-review

51 Citations (Scopus)

Abstract

Properties of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) were significantly modified by a hydrogen bonding (H-bond) monomer-bisphenol A (BPA). BPA lowered the Tmof PHBV and widened the heat-processing window of PHBV. At the same time, a dynamic H-bond network in the blends was observed indicating that BPA acted as a physical cross-link agent. BPA enhanced the Tgof PHBV and reduced the crystallization rate of PHBV. It resulted in larger crystallites in PHBV/BPA blends showed by WAXD. However, the crystallinity of PHBV was hardly reduced. SAXS results suggested that BPA molecules distributed in the inter-lamellar region of PHBV. Finally, a desired tension property was obtained, which had an elongation at break of 370% and a yield stress of 16 MPa. By comparing the tension properties of PHBV/BPA and PHBV/tert-butyl phenol blends, it was concluded that the H-bond network is essential to the improvement of ductility.
Original languageEnglish
Pages (from-to)6275-6284
Number of pages10
JournalPolymer
Volume45
Issue number18
DOIs
Publication statusPublished - 19 Aug 2004

Keywords

  • Bisphenol A
  • Hydrogen bond network
  • PHBV

ASJC Scopus subject areas

  • Polymers and Plastics
  • Organic Chemistry

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