| Issue |
Korean Journal of Chemical Engineering,
Vol.34, No.4, 1170-1176, 2017
Vol.34, No.4, 1170-1176, 2017
Phase equilibria measurement of binary mixtures for triethylene glycol dimethacrylate and triethylene glycol diacrylate in supercritical CO2
The phase equilibrium curves for the (CO2+triethylene glycol dimethacrylate) and (CO2+triethylene glycol diacrylate) systems at five temperatures (313.2, 333.2, 353.2, 373.2 and 393.2) K and pressures up to 30.34MPa were measured by synthetic apparatus. The solubility of triethylene glycol di(meth)acrylate in the (CO2+triethylene glycol dimethacrylate) and (CO2+triethylene glycol diacrylate) systems increased as the temperature increased at a fixed pressure. The (CO2+triethylene glycol dimethacrylate) and (CO2+triethylene glycol diacrylate) systems exhibited type-I phase equilibria. The experimental results for the (CO2+triethylene glycol dimethacrylate) and (CO2+triethylene glycol diacrylate) mixtures were correlated with the Peng-Robinson equation of state using a mixing rule including two adjustable parameters. The properties for the critical pressure, critical temperature and acentric factor of triethylene glycol dimethacrylate and triethylene glycol diacrylate were predicted with the Joback and Lyderson group contribution method.
Keywords:
Carbon Dioxide; Triethylene Glycol Diacrylate; Triethylene Glycol Dimethacrylate; High Pressure Phase Behavior
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