Macroscopic Modeling of Entanglement Network Evolution in Polymer Melt Flow

摘要

Mechanical properties of polymer solutions and melts are treated on the basis of different physical models, which should explain and quantitatively describe the observed viscoelastic behavior in deformation of a medium via its relaxation (or retardation) spectrum. Key models discussed in the literature are the viscoelastic bead-and-string model (Kargin-Slonimskii-Rouse model), the entanglement network model, and the model of reptation of a flexible macromolecule in a tube, which simulates interaction of a certain chain with surroundings.