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Dynamics of end-to-end loop formation: A flexible chain in the presence of hydrodynamic interaction

Chakrabarti, Rajarshi (2012) Dynamics of end-to-end loop formation: A flexible chain in the presence of hydrodynamic interaction. In: PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS, 391 (16). pp. 4081-4087.

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Official URL: http://dx.doi.org/10.1016/j.physa.2012.03.025

Abstract

Based on the Wilemski-Fixman approach G. Wilemski, M. Fixman, J. Chem. Phys. 60 (1974) 866], we show that, for a flexible chain in theta solvent, hydrodynamic interaction treated with a pre-averaging approximation makes ring closing faster if the chain is not very short. We also show that the ring closing time for a long chain with hydrodynamic interaction in theta solvent scales with the chain length (N) as N-1.5, in agreement with the previous renormalization group calculation based prediction by Freidman and O'Shaughnessy B. Friedman, B. O'Shaughnessy, Phys. Rev. A 40 (1989) 5950]. (C) 2012 Elsevier B.V. All rights reserved.

Item Type: Journal Article
Additional Information: Copy right for this article belongs to Elsevier B.V
Keywords: Polymer dynamics;Hydrodynamic interaction
Department/Centre: Division of Chemical Sciences > Inorganic & Physical Chemistry
Date Deposited: 14 Jul 2012 07:53
Last Modified: 14 Jul 2012 07:53
URI: http://eprints.iisc.ernet.in/id/eprint/44787

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