TY - JOUR
T1 - Phase behaviour of the ternary mixture system of poly(l-lactic acid), dichloromethane and carbon dioxide
AU - Gwon, Jungmin
AU - Cho, Dong Woo
AU - Kim, Soo Hyeon
AU - Shin, Hun Yong
AU - Kim, Hwayong
PY - 2012/12
Y1 - 2012/12
N2 - In this study, the high pressure phase behaviour of poly(l-lactic acid) (M = 312,000), dichloromethane and carbon dioxide ternary mixtures was studied using a variable volume view cell at temperatures ranging from 313.15 K to 363.15 K and pressures of up to 30.0 MPa as functions of temperature and the CO 2/dichloromethane mass ratio at poly(l-lactic acid) weight fractions of 1.0%, 2.5% and 3.0%. The experimental results were correlated with the hybrid equation of state for the CO 2-polymer system using the van der Waals one-fluid mixing rule with three adjustable binary interaction parameters.
AB - In this study, the high pressure phase behaviour of poly(l-lactic acid) (M = 312,000), dichloromethane and carbon dioxide ternary mixtures was studied using a variable volume view cell at temperatures ranging from 313.15 K to 363.15 K and pressures of up to 30.0 MPa as functions of temperature and the CO 2/dichloromethane mass ratio at poly(l-lactic acid) weight fractions of 1.0%, 2.5% and 3.0%. The experimental results were correlated with the hybrid equation of state for the CO 2-polymer system using the van der Waals one-fluid mixing rule with three adjustable binary interaction parameters.
KW - Biodegradable polymer
KW - Poly(l-lactic acid)
KW - Polymer-solvent-gas ternary systems
KW - Supercritical carbon dioxide
KW - The hybrid equation of state for CO2-polymer system
UR - https://www.scopus.com/pages/publications/84863685667
U2 - 10.1016/j.jct.2012.06.011
DO - 10.1016/j.jct.2012.06.011
M3 - Article
AN - SCOPUS:84863685667
SN - 0021-9614
VL - 55
SP - 37
EP - 41
JO - Journal of Chemical Thermodynamics
JF - Journal of Chemical Thermodynamics
ER -