Flow-induced correlation effects within a linear chain in a polymer melt

R. Stepanyan, J.J.M. Slot, J. Molenaar, M.A. Tchesnokov

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

A framework for a consistent description of the flow-induced correlation effects within a linear polymer chain in a melt is proposed. The formalism shows how correlations between chain segments in the flow can be incorporated into a hierarchy of distribution functions for tangent vectors. The present model allows one to take into account all the major relaxation mechanisms. Special cases of the derived set of equations are shown to yield existing models and shed some light on the connection between them. Consequences of several assumptions widely used in the literature are analyzed within the developed framework
Original languageEnglish
Pages (from-to)051807-051818
JournalPhysical Review. E, Statistical nonlinear, and soft matter physics
Volume72
Issue number5
DOIs
Publication statusPublished - 2005

Keywords

  • convective constraint release
  • cox-merz rule
  • microscopic theory
  • molecular theory
  • constitutive equation
  • entangled polymers
  • tube model
  • stretch
  • reptation
  • dynamics

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