LAUSR

Abstract Densities (ρ) and speed of sound (u) values have been measured for the binary mixtures of ethyl acrylate with propylamine, dipropylamine, diisopropylamine and tripropylamine at four temperatures (T = 303.15, 308.15, 313.15 and 318.15 K) and at atmospheric pressure over the entire composition range. Further, the measured data has been utilized to compute excess molar volume (VmE) and excess isentropic compressibility (κSE) for all the systems under the same experimental conditions. Expansion of our study has been done by calculating other thermodynamic parameters such as excess intermolecular free length (LfE) and excess speed of sound (uE). These calculated excess parameters have been correlated by Redlich-Kister equation. The experimental results have also been analysed by using Prigogine–Flory–Patterson (PFP) theory, intermolecular free length theory and collision frequency theory. To elucidate the presence of intermolecular interactions and structural effects the work has been augmented by FTIR studies also.