Thermodynamic insights on the viscometric and volumetric properties of binary mixtures of ketals and polyols

Information on the viscometric and volumetric properties of these compounds is very scarce, yet simultaneously critical to assess potential industrial applications. Here the density and viscosity of the binary mixtures of {GF + 1,2-PD}, {GF + EG}, {GF + Gly}, {Sk + 1,2-PD}, {Sk + EG} and {Sk + Gly} are experimentally measured over the entire range of compositions at 298.15, 308.15 and 313.15 K and atmospheric pressure. Correlation of these properties to the Jouyban-Acree equation was made to explain their variation with composition and temperature. Furthermore, molar excess volumes and viscosity deviations are herein calculated and Redlich-Kister equations are employed to model the behaviour with composition. Finally, the experimental results are supported with quantum chemical calculations based on COSMO-RS method in order to shed light on the interaction between the compounds, and further understand the thermodynamic behaviour of the corresponding binary mixtures.