Other Uses of the Solubility Parameter Theory

Source data compiled from author s personal files. 

FigurO 4.4 Linear regression plot of actual surface tensions versus calculated values. Derived from an equation suggested by Beerbower which uses the three partial Hansen solubility parameters to calculate the surface tension of a liquid (e.g., surface tension = 0.0715 [8j +0.632 (5p +8 )].) The term Vm represents the solvent s 

Beerbower [15] derived Equation 4.4 which uses the three partial Hansen solubility parameters to calculate the surface tension of the liquid. 

The term represents the solvents s molecular volume (molecular weight/ specific gravity) while the solubility parameter values are in the units of cal/cm. To test the validity of the Beerbower equation, the literature values of the 

Burrell, H., Am. Chem. Sac., Division of Organic Coatings Plastic Chemistry, Preprints 28(1), 682-708, 1968. 

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Other uses of the solubility parameter theory include pigment-solvent interactions in terms of suspension behavior, the compatibility of plasticizers and polymers, the critical strain behavior of commercial plastics in the presence of solvents, the effects of solvents on other mechanical properties of the polymers and the affinities of organic solvents in biological systems. Equation 1.3, which uses the three partial Hansen solubility parameters, can be used to estimate the surface tension of a liquid. 

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