A monte carlo study of ring polymers in disordered systems

Dilip Gersappe, Monica Olvera De La Cruz

Research output: Contribution to journalArticlepeer-review

Abstract

We study the properties of ring polymers in disordered systems using a Monte Carlo algorithm. The algorithm is used to generate a ring on a two dimensional lattice, and the disorder is represented by the random dilution of the lattice. We show how the ring undergoes a cross-over from obeying self avoiding statistics at low concentrations of disorder, to behaving like a branched polymer as the concentration of disorder is increased. We find a scaling behavior to characterize this cross-over phenomenon. We further show how this scaling behavior is also present in another class of problems, namely two dimensional vesicles Subject to a pressure differential.

Original languageEnglish (US)
Pages (from-to)267-283
Number of pages17
JournalMolecular Simulation
Volume13
Issue number4-5
DOIs
StatePublished - Oct 1994

Funding

We would like to thank B. Duplantier and J. M. Deutsch for valuable discussions. M. 0. would like to thank the financial support from the Lucille and David Packard Foundation. This was supported in part by NSF grant no DMR 9057764 and by a grant from the National Institutes of Health.

Keywords

  • Ring polymers
  • disorded systems
  • scaling

ASJC Scopus subject areas

  • General Chemistry
  • Information Systems
  • Modeling and Simulation
  • General Chemical Engineering
  • General Materials Science
  • Condensed Matter Physics

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