Volume 62, Number 6, June 2003
|Page(s)||848 - 854|
|Section||Condensed matter: structure, mechanical and thermal properties|
|Published online||01 June 2003|
Dynamics of the constrained polymer collapse
Materials Science Division, Argonne National Laboratory 9700 S. Cass Avenue, Argonne, IL 60439, USA
2 Institute for Nonlinear Science, University California, San Diego La Jolla, CA 92093-0402, USA
Accepted: 15 April 2003
The dynamics of polymer collapse with a fixed distance between endpoints is studied analytically and numerically by the Nosé-Hoover algorithm. We find that at the pearling stage of the collapse the number of pearls decays as leading to anomalously long collapse time. To understand the effect of Stokes drag we reduced the problem of long-polymer-chain collapse to the one-dimensional diffusion-limited coalescence of particles with the mass-dependent mobility. In this case the number of pearls decays slower, as .
PACS: 61.25.Hq – Macromolecular and polymer solutions; polymer melts; swelling / 83.10.Rs – Computer simulation of molecular and particle dynamics
© EDP Sciences, 2003
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