Physicochemical study of intermolecular interactions in binary mixtures of acetonitrile with alkyl acrylate monomers at temperatures from 293.15 K to 318.15 K by using ultrasonic speed and viscosity data

Abstract

The ultrasonic speeds, u and viscosities, η of binary mixtures of acetonitrile with alkyl acrylate (methyl acrylate, ethyl acrylate, n-butyl acrylate and t-butyl acrylate) over the entire composition range were measured at temperatures (293.15, 298.15, 303.15, 308.15, 313.15, and 318.15) K and at atmospheric pressure. From the experimental data, the excess isentropic compressibility, κsE, excess ultrasonic speed, uE, excess molar isentropic compressibility, Ks,mE and deviations in viscosity, Δη have been calculated. The partial molar isentropic compressibilities and excess partial molar isentropic compressibilities over whole composition range, partial molar isentropic compressibilities and excess partial molar isentropic compressibilities of the components at infinite dilution are calculated. The variation of these parameters is discussed in terms of molecular interactions in these mixtures. The viscosities of these mixtures were correlated using various models and the ultrasonic speeds of these mixtures were theoretically calculated using scaled particle theory and the results are compared with experimental values.