ABSTRACT
The main objective of this chapter is the presentation of an equation-of-state framework for the calculation of the hydrogen-bonding component of the solubility parameter as well as the other partial solubility parameters. A new statistical thermodynamic approach has been developed for the estimation of these partial components over a broad range of temperature and pressure. Key to this approach is the development of explicit expressions for the contribution of hydrogen bonding, dispersion, and dipolar interactions to the potential energy of the fluid. The approach is applicable to ordinary solvents, supercritical fluids, and high polymers. Information on various thermodynamic properties of fluids is used in order to estimate the three solubility parameter components. Extensive tables with the key parameters are presented. When information on hydrogen bonding interaction is available from other sources, the proposed method is essentially a predictive method for the hydrogen bonding component of the solubility parameter. On the other hand, available information on these separate components is exploited for extracting information on the thermodynamic behavior of the fluids over an extended range of external conditions.
