High-Pressure Phase Behavior of Poly(l -lactic acid), Trichloromethane, and Carbon Dioxide Ternary Mixture Systems

Taehyun Im; Jungmin Gwon; Soo Hyun Kim; Hun Yong Shin; Hwayong Kim

doi:10.1021/acs.jced.5b00319

High-Pressure Phase Behavior of Poly(l -lactic acid), Trichloromethane, and Carbon Dioxide Ternary Mixture Systems

Taehyun Im, Jungmin Gwon, Soo Hyun Kim, Hun Yong Shin, Hwayong Kim

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

In this study, the phase behavior of a poly(l-lactic acid) (M = 312000, polydispersity 2.189)-trichloromethane-carbon dioxide ternary system was measured using a variable volume view cell at pressures up to 34.0 MPa and temperatures between (313.15 K and 363.15) K at an interval of 10 K. Bubble and cloud point pressures were determined as functions of the trichlomethane-to-carbon dioxide ratio, concentration of poly(l-lactic acid) (1.0, 2.0, and 3.0 wt %), and temperature. The hybrid equation of state for the supercritical CO₂-polymer system combined with the van der Waals one-fluid mixing rule was used for correlation of the experimental results. The three binary parameters of this system were optimized by the simplex method algorithm.

Original language	English
Pages (from-to)	2172-2177
Number of pages	6
Journal	Journal of Chemical and Engineering Data
Volume	60
Issue number	7
DOIs	https://doi.org/10.1021/acs.jced.5b00319
Publication status	Published - 2015 Jul 9

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Publisher Copyright:
© 2015 American Chemical Society.

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering

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10.1021/acs.jced.5b00319

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title = "High-Pressure Phase Behavior of Poly(l -lactic acid), Trichloromethane, and Carbon Dioxide Ternary Mixture Systems",

abstract = "In this study, the phase behavior of a poly(l-lactic acid) (M = 312000, polydispersity 2.189)-trichloromethane-carbon dioxide ternary system was measured using a variable volume view cell at pressures up to 34.0 MPa and temperatures between (313.15 K and 363.15) K at an interval of 10 K. Bubble and cloud point pressures were determined as functions of the trichlomethane-to-carbon dioxide ratio, concentration of poly(l-lactic acid) (1.0, 2.0, and 3.0 wt %), and temperature. The hybrid equation of state for the supercritical CO2-polymer system combined with the van der Waals one-fluid mixing rule was used for correlation of the experimental results. The three binary parameters of this system were optimized by the simplex method algorithm.",

author = "Taehyun Im and Jungmin Gwon and Kim, {Soo Hyun} and Shin, {Hun Yong} and Hwayong Kim",

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AU - Im, Taehyun

AU - Gwon, Jungmin

AU - Kim, Soo Hyun

AU - Shin, Hun Yong

AU - Kim, Hwayong

PY - 2015/7/9

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N2 - In this study, the phase behavior of a poly(l-lactic acid) (M = 312000, polydispersity 2.189)-trichloromethane-carbon dioxide ternary system was measured using a variable volume view cell at pressures up to 34.0 MPa and temperatures between (313.15 K and 363.15) K at an interval of 10 K. Bubble and cloud point pressures were determined as functions of the trichlomethane-to-carbon dioxide ratio, concentration of poly(l-lactic acid) (1.0, 2.0, and 3.0 wt %), and temperature. The hybrid equation of state for the supercritical CO2-polymer system combined with the van der Waals one-fluid mixing rule was used for correlation of the experimental results. The three binary parameters of this system were optimized by the simplex method algorithm.

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High-Pressure Phase Behavior of Poly(l -lactic acid), Trichloromethane, and Carbon Dioxide Ternary Mixture Systems

Abstract

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