Star Polymers in Shear Flow

M. Ripoll, R. G. Winkler, and G. Gompper
Phys. Rev. Lett. 96, 188302 – Published 11 May 2006
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Abstract

Linear and star polymers in solution are studied in the presence of shear flow. The solvent is described by a particle-based mesoscopic simulation technique, which accounts for hydrodynamic interactions. The scaling properties of the average gyration tensor, the orientation angle, and the rotation frequency are investigated for various arm lengths and arm numbers. With increasing functionality f, star polymers exhibit a crossover in their flow properties from those of linear polymers to a novel behavior, which resembles the tank-treading motion of elastic capsules.

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  • Received 27 January 2006

DOI:https://doi.org/10.1103/PhysRevLett.96.188302

©2006 American Physical Society

Authors & Affiliations

M. Ripoll*, R. G. Winkler, and G. Gompper

  • Institut für Festkörperforschung, Forschungszentrum Jülich, D-52425 Jülich, Germany

  • *Email address: m.ripoll@fz-juelich.de

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Issue

Vol. 96, Iss. 18 — 12 May 2006

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