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Surface forces mediated by charged polymers: Effects of intrinsic chain stiffness

Turesson, Martin LU ; Forsman, Jan LU and Åkesson, Torbjörn LU (2006) In Langmuir 22(13). p.5734-5741
Abstract
The strength and range of surface forces in a system consisting of charged polymers with variable intramolecular stiffness confined between two charged planar surfaces have been investigated by Monte Carlo simulations. The negatively charged surfaces are neutralized by polymers carrying charges of opposite sign. Introducing the intermediate intrinsic stiffness of the chains gives rise to a weaker, but more long-ranged attraction between the surfaces. In the limit of infinitely stiff chains, this bridging attraction is lost, but it is replaced by a strong correlation attraction at short distances. Comparisons with predictions by a correlation-corrected polyelectrolyte Poisson-Boltzmann theory are made. The theory predicts surface... (More)
The strength and range of surface forces in a system consisting of charged polymers with variable intramolecular stiffness confined between two charged planar surfaces have been investigated by Monte Carlo simulations. The negatively charged surfaces are neutralized by polymers carrying charges of opposite sign. Introducing the intermediate intrinsic stiffness of the chains gives rise to a weaker, but more long-ranged attraction between the surfaces. In the limit of infinitely stiff chains, this bridging attraction is lost, but it is replaced by a strong correlation attraction at short distances. Comparisons with predictions by a correlation-corrected polyelectrolyte Poisson-Boltzmann theory are made. The theory predicts surface attractions that are somewhat too weak, but all qualitative features are correctly reproduced. Given the crudeness of the model, the quantitative agreement is satisfactory. (Less)
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author
; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Langmuir
volume
22
issue
13
pages
5734 - 5741
publisher
The American Chemical Society (ACS)
external identifiers
  • wos:000238217000038
  • scopus:33745754050
  • pmid:16768502
ISSN
0743-7463
DOI
10.1021/la0604735
language
English
LU publication?
yes
additional info
The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Theoretical Chemistry (S) (011001039)
id
533a66a3-4a4f-4258-8da2-a014b0fc1382 (old id 406771)
date added to LUP
2016-04-01 12:20:48
date last changed
2021-03-24 03:55:18
@article{533a66a3-4a4f-4258-8da2-a014b0fc1382,
  abstract     = {The strength and range of surface forces in a system consisting of charged polymers with variable intramolecular stiffness confined between two charged planar surfaces have been investigated by Monte Carlo simulations. The negatively charged surfaces are neutralized by polymers carrying charges of opposite sign. Introducing the intermediate intrinsic stiffness of the chains gives rise to a weaker, but more long-ranged attraction between the surfaces. In the limit of infinitely stiff chains, this bridging attraction is lost, but it is replaced by a strong correlation attraction at short distances. Comparisons with predictions by a correlation-corrected polyelectrolyte Poisson-Boltzmann theory are made. The theory predicts surface attractions that are somewhat too weak, but all qualitative features are correctly reproduced. Given the crudeness of the model, the quantitative agreement is satisfactory.},
  author       = {Turesson, Martin and Forsman, Jan and Åkesson, Torbjörn},
  issn         = {0743-7463},
  language     = {eng},
  number       = {13},
  pages        = {5734--5741},
  publisher    = {The American Chemical Society (ACS)},
  series       = {Langmuir},
  title        = {Surface forces mediated by charged polymers: Effects of intrinsic chain stiffness},
  url          = {http://dx.doi.org/10.1021/la0604735},
  doi          = {10.1021/la0604735},
  volume       = {22},
  year         = {2006},
}