Dynamics of polymer decompression: Expansion, unfolding, and ejection

Takahiro Sakaue, Natsuhiko Yoshinaga

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

The dynamics of polymer decompression from a compact state to swollen conformation can be formally described as nonlinear diffusion. We discuss two basic examples: (i) the expansion, or unfolding from a compact state, and (ii) the ejection of a compressed polymer through a pore. The problem can be solved exactly for case (i), but not for case (ii). Even in such situations, a scheme called uniform approximation is shown to be useful to get a physical insight involved. Its application to case (ii) is able to account for conflicting numerical data in a consistent way.

Original languageEnglish
Article number148302
JournalPhysical Review Letters
Volume102
Issue number14
DOIs
Publication statusPublished - Apr 6 2009

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pressure reduction
ejection
expansion
polymers
porosity
approximation

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Dynamics of polymer decompression : Expansion, unfolding, and ejection. / Sakaue, Takahiro; Yoshinaga, Natsuhiko.

In: Physical Review Letters, Vol. 102, No. 14, 148302, 06.04.2009.

Research output: Contribution to journalArticle

Sakaue, Takahiro ; Yoshinaga, Natsuhiko. / Dynamics of polymer decompression : Expansion, unfolding, and ejection. In: Physical Review Letters. 2009 ; Vol. 102, No. 14.
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