Descripción
© 2019 American Chemical Society. In this study, experimental density data (ρ) for binary liquid mixtures containing {2-(dimethylamino)ethyl methacrylate (DMAEMA) + methanol, or + ethanol, or + 1-propanol, or + 1-butanol, or + 1-pentanol} have been measured over the entire composition range at temperatures from T = (293.15 to 313.15) K and pressures of up to 35 MPa. Density measurements were obtained using an Anton Paar DMA 4500 vibrating-tube densimeter coupled to an external Anton Paar DMA HP high-pressure measuring cell. The experimental results for density have been fit to the Tait-Tammann equation and used to calculate the isothermal compressibility (κ T ), the thermal expansion coefficient (α p ), and the internal pressure (π). The excess molar volume (Vm E ) values have still been calculated and used to test the applicability of the extended real associated solution model (ERAS model) and the Prigogine-Flory-Patterson theory (PFP Theory). The thermodynamic results suggest that structural and chemical effects must outweigh physical effects.
