Measurement of high-pressure phase behavior for the benzyl (meth)acrylate in supercritical carbon dioxide from (313.2 to 393.2) K and pressures from (6 to 24) MPa

High-pressure phase behavior is obtained for CO₂ (1) + benzyl aery late (2) and CO₂ (1) + benzyl methacrylate (2) systems at (313.2, 333.2, 353.2, 373.2, and 393.2) K and pressures up to 24.43 MPa. The solubility of monomers for the CO₂ (1) + benzyl acrylate (2) and CO₂ (1) + benzyl methacrylate (2) systems increases as the temperature increases at constant pressure. The CO₂ (1) + benzyl acrylate (2) and CO₂ (1) + benzyl methacrylate (2) systems exhibit type-I phase behavior. The experimental results for CO₂ (1) + benzyl acrylate (2) and CO₂ (1) + benzyl methacrylate (2) systems are correlated with the Peng-Robinson equation of state using a van der Waals one-fluid mixing rule including two adjustable parameters. Critical constants (P_c, T_c, and ω) are predicted with the Joback method and the Lee-Kesler method.