Bead-spring macromolecules: The kinetic contribution to the total stress

Using complete phase space distributions, this analysis predicts an isotropic kinetic contribution to the total stress for both the solvent and polymer. The solvent's contribution depends on the polymer's intramolecular potential energy, as well as the intermolecular potential between the solvent and polymer. The analysis questions whether single molecule distributions are capable of investigating the possibility of anisotropic kinetic distributions. The analysis uses the peculiar velocity fields in lieu of modeling molecular collisions.