Computer simulation studies of the miscibility of poly(3-hydroxybutyrate)- based blends

Hua Yang, Ze Sheng Li*, Zhong Yuan Lu, Chia Chung Sun

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

30 Citations (Scopus)

Abstract

By means of the molecular dynamics simulation method, the miscibility of poly(3-hydroxybutyrate)/polyethylene (PHB/PE) blend has been investigated. Two glass transition temperatures of the PHB/PE are found by scrutinizing its volume-temperature curve, and this result is qualitatively in agreement with the experimental results. To further analyze the miscibility of poly(3-hydroxybutyrate)-based blends, the Flory-Huggins parameters of PHB/PE, poly(3-hydroxybutyrate)/poly(ethylene oxide) (PHB/PEO), poly(ethylene oxide)/polyethylene (PEO/PE) have been calculated via a Monte Carlo scheme, and the morphology of the PHB/PEO and the PHB/PE blend has been simulated using dissipative particle dynamics method. The time evolution of dividing interface for PHB/PEO/PE blend shows a dynamic phase separation process. All these results indicate that PHB and PEO tend to mix together, whereas PE aggregates to form PE-rich domains in the PHB/PE and PHB/PEO/PE blends.

Original languageEnglish
Pages (from-to)2956-2962
Number of pages7
JournalEuropean Polymer Journal
Volume41
Issue number12
DOIs
Publication statusPublished - Dec 2005
Externally publishedYes

Keywords

  • Blending
  • Dissipative particle dynamics
  • Molecular dynamics

Fingerprint

Dive into the research topics of 'Computer simulation studies of the miscibility of poly(3-hydroxybutyrate)- based blends'. Together they form a unique fingerprint.

Cite this