Theory of tethered polymers in shear flow: The strong stretching limit

Charles E. Sing, Alfredo Alexander-Katz

Research output: Contribution to journalArticle

Abstract

In the present article, we use simulation and theory to understand the case of flexible and semiflexible tethered polymers in the limit of high shear flows and consequently near-full extension of the chains. We adopt a random-walk picture along the axis of the polymer, which in combination with a statistical mechanical description of perturbations along the chain contour allows us to fully characterize the geometry of the polymer chain without any fit parameters. Incorporation of hydrodynamic interactions is also investigated, with the hydrodynamic lift force inducing changes in the chain equilibrium structure near the tether point that could have implications for adsorption and desorption kinetics.

Original languageEnglish (US)
Pages (from-to)9020-9028
Number of pages9
JournalMacromolecules
Volume44
Issue number22
DOIs
StatePublished - Nov 22 2011
Externally publishedYes

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ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry
  • Materials Chemistry

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