Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/25641
Title: Modified poly(3-hydroxybutyrate-co-3-hydroxyvalerate) using hydrogen bonding monomers
Authors: Fei, B 
Chen, C
Wu, H
Peng, S
Wang, X
Dong, L
Xin, JH 
Keywords: Bisphenol A
Hydrogen bond network
PHBV
Issue Date: 2004
Publisher: Elsevier
Source: Polymer, 2004, v. 45, no. 18, p. 6275-6284 How to cite?
Journal: Polymer (United Kingdom) 
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 T m of 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 T g of 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.
URI: http://hdl.handle.net/10397/25641
ISSN: 0032-3861
EISSN: 1873-2291
DOI: 10.1016/j.polymer.2004.07.008
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