학회 |
한국화학공학회 |
학술대회 |
2012년 봄 (04/25 ~ 04/27, 제주 ICC) |
권호 |
18권 1호, p.759 |
발표분야 |
열역학 |
제목 |
High-Pressure Phase Behavior of Poly(L-lactic acid) + Carbon Dioxide + Dichloromethane Ternary Mixture System |
초록 |
In this study, the high pressure phase behavior of poly(L-lactic acid) (Mw = 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 300bar as functions of temperature and the CO2/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 CO2-polymer system using the van der Waals one-fluid mixing rule with three adjustable binary interaction parameters. |
저자 |
권정민1, 김화용1, 김병헌1, 신헌용2, 김수현3
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소속 |
1서울대, 2서울과학기술대, 3한국과학기술(연) |
키워드 |
Supercritical carbon dioxide; Poly(L-lactic acid); polymer – solvent – gas ternary systems; The hybrid equation of state for CO2-polymer system; Biodegradable polymer
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