화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2014년 봄 (04/23 ~ 04/25, 창원컨벤션센터)
권호 20권 1호, p.616
발표분야 열역학
제목 High-Pressure Phase Behavior of Polycaprolactone + Dichloromethane + Supercritical Carbon Dioxide Ternary Mixture System
초록 Phase behavior data are presented for Polycaprolactone (PCL MW = 56,000) in supercritical mixtures of dichloromethane and carbon dioxide. Cloud point pressures were measured using a variable-volume view cell apparatus as function of temperature, dichloromethane composition in a mixed solvent, molecular weight of PCL at the polymer concentration of wt% = 1.0, 2.0, and 3.0 mass fraction in solution, and for temperatures up to about 353.15K. This system exhibited the characteristics of lower critical solution temperature (LCST) phase behavior. The experimental data were correlated with the hybrid equation of state for the CO2 – Polymer systems.
저자 권정민1, 김병헌1, 김수현2, 신헌용3, 김화용1
소속 1서울대, 2한국과학기술(연), 3서울과학기술대
키워드 supercritical fluids; carbon dioxide; biodegradable polymer; polycaprolactone; hybrid equation of state
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