Dynamics of diffusion controlled chain closure: flexible chain in presence of hydrodynamic interaction
Soft Condensed Matter
2012-07-09 v1 Statistical Mechanics
Abstract
Based on the Wilemski-Fixman approach (J. Chem. Phys. 60, 866 (1974)) we showed that for a flexible chain in theta solvent hydrodynamic interaction treated with an pre-averaging approximation makes ring closing faster if the chain is not very short. Only for a very short chain the ring closing is slower with hydrodynamic interaction on. We have also shown that the ring closing time for a chain with hydrodynamic interaction in theta solvent scales with the chain length (N) as N^(1.527), in good agreement with previous renormalization group calculation based prediction by Freidman et al. (Phys. Rev. A. 40, 5950 (1989)).
Keywords
Cite
@article{arxiv.1105.0926,
title = {Dynamics of diffusion controlled chain closure: flexible chain in presence of hydrodynamic interaction},
author = {Rajarshi Chakrabarti},
journal= {arXiv preprint arXiv:1105.0926},
year = {2012}
}