Elastic Entropic Forces in Polymer Deformation
V.I. Kartsovnik, Dimitri Volchenkov
Abstract
The entropic nature of elasticity of long molecular chains and reticulated materials is discussed concerning the analysis of flows of polymer melts and elastomer deformation in the framework of Frenkel-Eyring molecular kinetic theory. Deformation curves are calculated in line with the simple viscoelasticity models where the activation energy of viscous flow depends on the magnitude of elastic entropic forces of the stretched macromolecules. The interconnections between deformation processes and the structure of elastomer networks, as well as their mutual influence on each other, are considered.
Topics & Concepts
Entropic forceElastomerViscoelasticityElasticity (physics)Deformation (meteorology)PolymerMaterials scienceKinetic energyRubber elasticityElastic energyClassical mechanicsThermodynamicsPhysicsComposite materialRheology and Fluid Dynamics StudiesPhase Equilibria and ThermodynamicsPolymer crystallization and properties