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The Hildebrand Approach

Cohesive energies are therefore positive since A , 0. The cohesive energy density (CED Eq. (2.23)) is defined as the cohesive energy per unit volume, and measures the intermolecular attraction energy per unit volume in pure substances. In addition, the solubility parameter, d, is defined as the square-root of the cohesive energy density, (d = (CED) )  [Pg.17]

Substituting the values of the attractive energy densities in terms of the CEDs of the pure components in the definition of B (Eq. (2.12)), and recalling that d = CED  [Pg.18]

This equation indicates that the contribution of the dispersive interactions to the enthalpy of mixing is always positive, and therefore unfavorable to miscibility [8,9]. [Pg.18]

Extension of the Flory-Hu ns Model to Systems with Specific Interactions [Pg.19]

To account for the composition dependence, B can be modified by adding correction terms defined in a parallel manner to the original dispersive term. At infinite dilution of component-2 (when (p 1), the correction term should be [Pg.19]


See other pages where The Hildebrand Approach is mentioned: [Pg.340]    [Pg.17]    [Pg.18]    [Pg.18]   


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