Excess molar volumes, and viscosities of tetraethylene glycol dimethyl ether with methyl acetate, ethyl acetate, and propyl acetate at (298.15, 308.15, and 318.15) K

Abstract

Excess molar volumes, and viscosities at (298.15, 308.15, and 318.15) K and atmospheric pressure for the binary mixtures of tetraethylene glycol dimethyl ether with methyl acetate, ethyl acetate, and propyl acetate have been measured over the whole mole fraction range. From these data, deviations in viscosity, and excess free energies of activation of viscous flow have been calculated. These parameters are used to discuss the molecular interactions between the components of the mixtures. Furthermore, activation enthalpies, and entropies of viscous flow have been evaluated and their variation with concentration is discussed. A short comparative study with results for mixtures with esters and polyethers is also presented.