Brownian dynamics simulations of confined tethered polymers in shear flow: The effect of attractive surfaces

Gabriel O. Ibáñez-García, Patricia Goldstein, S. Hanna

Research output: Contribution to journalArticle (Academic Journal)peer-review

5 Citations (Scopus)

Abstract

Coarse grain Brownian dynamics simulations of the bead-spring model are used to investigate the effect of attractive surfaces on the stretching of confined tethered polymers under shear flow. The weak and strong adsorbed regimes have been addressed by means of a coarse grain van der Waals potential to simulate polymer substrate interactions. Different stationary cyclic dynamics are observed upon varying shear flow intensity and surface potential strength. Polymer stretching decreases as increasing the attractive potential strength, breaking down the scaling predictions for non-adsorbed polymers. We found that adsorption is enhanced by the shear flow strength in agreement to simulations of adsorbed non-tethered polymers.

Original languageEnglish
Article number56
JournalEuropean Physical Journal E
Volume36
Issue number5
DOIs
Publication statusPublished - May 2013

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