High-pressure phase behaviour of poly(d-lactic acid), trichloromethane, and carbon dioxide ternary mixture systems

Taehyun Im, Jung Min Gwon, Soo Hyun Kim, Hun Yong Shin, Hwayong Kim

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Abstract The high pressure phase behaviour of poly(d-lactic acid) (Mw = 359,000), trichloromethane, and carbon dioxide ternary mixture systems is presented in this study. Cloud and bubble point pressures were measured using a variable volume view cell at temperatures (313.15 to 363.15) K and pressures up to 33.6 MPa. The hybrid equation of state for the polymer-carbon dioxide system was used to correlate the experimental results. The van der Waals one-fluid mixing rule with three adjustable binary interaction parameters was used for all correlations. The binary parameters were optimised using the simplex method algorithm.

Original languageEnglish
Article number4292
Pages (from-to)216-223
Number of pages8
JournalJournal of Chemical Thermodynamics
Volume90
DOIs
Publication statusPublished - 2015 Jul 22
Externally publishedYes

Fingerprint

lactic acid
Phase behavior
Lactic acid
Chloroform
Carbon Dioxide
carbon dioxide
Lactic Acid
Carbon dioxide
simplex method
equations of state
bubbles
Equations of state
fluids
Polymers
polymers
cells
Fluids
interactions
temperature
Temperature

Keywords

  • (Polymer + solvent + gas) ternary systems
  • Biodegradable polymer
  • Poly(d-lactic acid)
  • Supercritical carbon dioxide
  • The hybrid equation of state for (CO<inf>2</inf> + polymer) system

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)
  • Physical and Theoretical Chemistry

Cite this

High-pressure phase behaviour of poly(d-lactic acid), trichloromethane, and carbon dioxide ternary mixture systems. / Im, Taehyun; Gwon, Jung Min; Kim, Soo Hyun; Shin, Hun Yong; Kim, Hwayong.

In: Journal of Chemical Thermodynamics, Vol. 90, 4292, 22.07.2015, p. 216-223.

Research output: Contribution to journalArticle

Im, Taehyun ; Gwon, Jung Min ; Kim, Soo Hyun ; Shin, Hun Yong ; Kim, Hwayong. / High-pressure phase behaviour of poly(d-lactic acid), trichloromethane, and carbon dioxide ternary mixture systems. In: Journal of Chemical Thermodynamics. 2015 ; Vol. 90. pp. 216-223.
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