Molecular-Level Interactions in Binary Mixtures of 1-Ethyl-3-methylimidazolium Ethylsulfate and Propane-1,2-diol: The Interplay between Intermolecular and Intramolecular Hydrogen Bonding.

ABSTRACT: In this study, volumetric properties of an ionic liquid, 1-ethyl-3-methylimidazolium ethylsulfate ([C₂mim]C₂H₅SO₄), propane-1,2-diol, and their binary mixtures were studied by measurements of density and viscosity. The excess molar volume (V_m^E), dynamic viscosity deviation (Δη), and excess molar Gibbs free energy of activation for viscous flow (ΔG_m^*) were calculated and fitted with the Redlich-Kister (RK) type polynomial equation. The results suggested that intermolecular interactions are weaker in the mixture compared to the pure components and the interactions decrease with increasing mole fraction of [C₂mim]C₂H₅SO₄. The thermodynamic activatio

SUBMITTER: Ali MA 

PROVIDER: S-EPMC10500642 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature