Authors: Esmaeil Narimissa Víctor H RolónGarrido Manfred H Wagner
Publish Date: 2016/03/02
Volume: 55, Issue: 4, Pages: 327-333
Abstract
In part I a novel hierarchical multimode molecular stress function HMMSF model for longchain branched LCB polymer melts has been proposed which implements the basic ideas of i the pompom model ii hierarchal relaxation iii dynamic dilution and iv interchain pressure Here the capability of this approach is demonstrated in modelling the extensional viscosity data of a broadly distributed longchain branched polymer melt in uniaxial equibiaxial and planar extensional deformations with only a single nonlinear parameter the dilution modulus which quantifies the fraction of dynamically diluted chain segments
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