Rheologica Acta

, Volume 39, Issue 6, pp 517–531

Quantitative predictions of linear viscoelastic rheological properties of entangled polymers

  • Cattaleeya Pattamaprom
  • Ronald G. Larson
  • Timothy J. Van Dyke
ORIGINAL CONTRIBUTION

DOI: 10.1007/s003970000104

Cite this article as:
Pattamaprom, C., Larson, R. & Van Dyke, T. Rheol. Acta (2000) 39: 517. doi:10.1007/s003970000104

Abstract

The “dual constraint” model developed by Mead, Van Dyke et al. is here extended by inclusion of “early-time” contour-length fluctuations and constraint-release Rouse relaxation, and then evaluated by comparing its predictions with literature data for over 50 different linear and star polymers. By combining the reptation model of Doi and Edwards with contour-length fluctuations and constraint release, the model provides a systematic approach to prediction of the rheological properties of polymers. The parameters are taken from the literature and used consistently for linear polymers, star polymers, and their mixtures having the same chemical compositions. In most cases, the predictions of the model appears to agree well with data for monodisperse, bidisperse, and polydisperse linear and star polymers, except at low molecular weights.

Key words Linear viscoelasticDouble reptationConstraint releaseLinear polymersStar polymers

Copyright information

© Springer-Verlag Berlin Heidelberg 2000

Authors and Affiliations

  • Cattaleeya Pattamaprom
    • 1
  • Ronald G. Larson
    • 1
  • Timothy J. Van Dyke
    • 2
  1. 1.Department of Chemical Engineering University of Michigan Ann Arbor, MI 48109, USA e-mail: rlarson@engin.umich.eduUS
  2. 2.Department of Mechanical and Aerospace Engineering University of California at San Diego