A hierarchical multi-mode MSF model for long-chain branched polymer melts part I: elongational flow

Esmaeil Narimissa, Víctor H. Rolón-Garrido, Manfred H. Wagner*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

A novel hierarchical multi-mode molecular stress function (HMMSF) model for long-chain branched (LCB) polymer melts is proposed, which implements the basic ideas of (i) the pom-pom model, (ii) hierarchal relaxation, (iii) dynamic dilution and (iv) interchain pressure. Here, the capability of this approach is demonstrated in modelling uniaxial extensional viscosity data of numerous broadly distributed long-chain branched polymer melts with only a single non-linear parameter, the dilution modulus.

Original languageEnglish
Pages (from-to)779-791
Number of pages13
JournalRheologica Acta
Volume54
Issue number9-10
DOIs
StatePublished - 1 Oct 2015
Externally publishedYes

Keywords

  • Elongational flow
  • Modelling
  • Molecular stress function theory
  • Polymer melt
  • Uniaxial extension
  • Viscoelastic fluid

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