polymer–solvent interaction

https://doi.org/10.1351/goldbook.P04746
The sum of the effects of all intermolecular interactions between polymer and solvent molecules in solution that are reflected in the Gibbs and Helmholtz energies of mixing.
Source:
Purple Book, 1st ed., p. 57 (http://old.iupac.org/publications/books/author/metanomski.html)