Dynamics of linear polymers in random media

Bikas K. Chakrabarti, Amit K. Chattopadhyay, Amit Dutta

Research output: Contribution to journalArticle

Abstract

We study phenomenological scaling theories of the polymer dynamics in random media, employing the existing scaling theories of polymer chains and the percolation statistics. We investigate both the Rouse and the Zimm model for Brownian dynamics and estimate the diffusion constant of the center-of-mass of the chain in such disordered media. For internal dynamics of the chain, we estimate the dynamic exponents. We propose similar scaling theory for the reptation dynamics of the chain in the framework of Flory theory for the disordered medium. The modifications in the case of correlated disorders are also discussed. .
Original languageEnglish
Pages (from-to)34-40
Number of pages7
JournalPhysica A
Volume333
Early online date14 Nov 2003
DOIs
Publication statusPublished - 15 Feb 2004

Bibliographical note

© 2003 Elsevier B.V. All rights reserved.

Keywords

  • polymers
  • reptation
  • percolation
  • scaling

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