Confinement causes opposite effects on the folding transition of a single polymer chain depending on its stiffness

Yuji Higuchi, Kenichi Yoshikawa, Takafumi Iwaki

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

We investigated the folding transition between an elongated coil state and a compact state on a single polymer chain confined in a small space with different stiffness with the aid of Monte Carlo simulation. In a flexible polymer, the folding transition is retarded in a confined space. In contrast, the transition is promoted for a semiflexible chain, in which the discontinuity of the volume change occupied by a single chain is diminished by confinement. This unique confinement effect is interpreted in terms of conformational entropy and self-avoiding repulsive interaction.

Original languageEnglish
Article number021924
JournalPhysical Review E - Statistical, Nonlinear, and Soft Matter Physics
Volume84
Issue number2
DOIs
Publication statusPublished - 2011 Aug 22

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Statistics and Probability
  • Condensed Matter Physics

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