. Void space analysis further demonstrates that the disruption of alcohol hydrogen-bond networks by PE creates expanded free volume, with cavity radii distributions shifting toward larger voids as temperature increases. This structural asymmetry provides a quantitative molecular basis for the observed positive excess molar volumes and negative viscosity deviations, establishing a direct link between hydrogen-bond topology, void distributions, and macroscopic thermophysical behavior in ester-alkanol systems.
Almasi et al. (Wed,) studied this question.