ABSTRACT
Solubility maps may be as simple as plots of maximum polymer concentration as a function of Hildebrand parameter, but more often they are used to represent two or more parameters. This chapter is concerned with those involving only some type of cohesion parameter, and examples including other forms of parameter are described. Instead of assuming spherical or rectangular volumes of polymer-liquid interaction that allow characterization of polymers in terms of a few numerical quantities, it is possible to present this information in the form of irregular volumes. Hybrid cohesion parameter maps may be used to describe and correlate polymer swelling behavior as well as polymer solubility. Liquids in the >100% swell region cause the polymer to swell to at least twice its original volume; from this region either increasing or decreasing the hydrogen-bonding parameter at the same Hildebrand parameter value causes the extent of swelling to decrease.
