Non-specific solvation

This equation takes into account the influence of the polarization f(n) and polarity f(e) of the solvents determining their ability to non-specific solvation and also their basicities B [22] which are accordingly to Koppell-Paim s quantitatively equal to OW-group displacement absorption band in / -spectrum of the phenol dissolved in given solvent, and electrophilicity accordingly to Reichardt ET characterizing their ability to introduce into acid-base interactions (specific solvation). Appropriateness of this equation for the generalization of experimental data of the dependencies of reactions rates (and also spectral characteristics of dissolved substances) on physical-chemical characteristics of the solvents has been proved by a number of hundred examples. 

The nature of the medium may also have a strong influence on the complexation process via specific or non specific solvation effects on both the complexed and uncomplexed states. The solvent plays a very important role both on enthalpy and entropy of complexation. Stability and selectivity result from a subtle balance between solvation (of both L and S) and complexation (i.e. "solvation of S by L). 

Both stmcture and macromolecular d5mamics render the significant influence on its stability, i.e., chemical nature of the solvent (plasticizer), its basicity, specific and non-specific solvation, degree of PVC in a solution (solubility), segmental mobility of macromolecules, thermodynamic properties of the solvent (plasticizer), formation of associates, aggregates, etc. 

Key words plasticizers, solvent, basicity, specific and non-specific solvation, solution, solubility, segmental mobility of macromolecules, thermodynamic properties, associates, aggregates. 

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