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Discontinuous volume transitions in cross-linked polyelectrolyte gels induced by short-range attractions and strong electrostatic coupling

Schneider, Stefanie LU and Linse, Per LU (2004) In Macromolecules 37(10). p.3850-3856
Abstract
The swelling behavior of polyelectrolyte gels with and without short-range attraction was studied at variable permittivities using Monte Carlo simulations. The primitive model, with explicit treatment of all charged species augmented with an attractive square-well potential between network particles, was used. Discontinuous volume transitions appeared at critical values of the depth of the square-well potential at fixed permittivity and at critical values of the permittivity at fixed short-range potential. In particular, we observed such a transition also without the short-range potential. The collapsed state was favored by the short-range attraction and/or at low permittivity. The volumes of the collapsed states were 1-2 orders of... (More)
The swelling behavior of polyelectrolyte gels with and without short-range attraction was studied at variable permittivities using Monte Carlo simulations. The primitive model, with explicit treatment of all charged species augmented with an attractive square-well potential between network particles, was used. Discontinuous volume transitions appeared at critical values of the depth of the square-well potential at fixed permittivity and at critical values of the permittivity at fixed short-range potential. In particular, we observed such a transition also without the short-range potential. The collapsed state was favored by the short-range attraction and/or at low permittivity. The volumes of the collapsed states were 1-2 orders of magnitude smaller than those of the swollen states. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Macromolecules
volume
37
issue
10
pages
3850 - 3856
publisher
The American Chemical Society
external identifiers
  • wos:000221394600046
  • scopus:2542626015
ISSN
0024-9297
DOI
10.1021/ma035512n
language
English
LU publication?
yes
id
77b65431-eed6-4b34-b9fe-9d9e47632b50 (old id 153765)
date added to LUP
2007-07-12 11:19:52
date last changed
2017-09-03 03:43:32
@article{77b65431-eed6-4b34-b9fe-9d9e47632b50,
  abstract     = {The swelling behavior of polyelectrolyte gels with and without short-range attraction was studied at variable permittivities using Monte Carlo simulations. The primitive model, with explicit treatment of all charged species augmented with an attractive square-well potential between network particles, was used. Discontinuous volume transitions appeared at critical values of the depth of the square-well potential at fixed permittivity and at critical values of the permittivity at fixed short-range potential. In particular, we observed such a transition also without the short-range potential. The collapsed state was favored by the short-range attraction and/or at low permittivity. The volumes of the collapsed states were 1-2 orders of magnitude smaller than those of the swollen states.},
  author       = {Schneider, Stefanie and Linse, Per},
  issn         = {0024-9297},
  language     = {eng},
  number       = {10},
  pages        = {3850--3856},
  publisher    = {The American Chemical Society},
  series       = {Macromolecules},
  title        = {Discontinuous volume transitions in cross-linked polyelectrolyte gels induced by short-range attractions and strong electrostatic coupling},
  url          = {http://dx.doi.org/10.1021/ma035512n},
  volume       = {37},
  year         = {2004},
}