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Nonlinear electric response of polyampholytes

Khan, MO; Åkesson, Torbjörn LU ; Woodward, CE and Jönsson, Bo LU (2003) In Theoretical Chemistry Accounts 110(3). p.126-129
Abstract
The behavior of polyampholytes (PAs) in electric fields is investigated by Monte Carlo simulations. In bulk it is found that the response of the PA depends on the charge sequence. For small repeating units of positive and negative charges the response is linear, while bigger units results in a nonlinear response in both the induced dipole moment and the resulting polymer conformation. This is reflected in how PAs modify colloidal suspensions, and while PAs always decrease the repulsion between charged colloidal particles, some net-neutral PAs can even induce an effective attraction between the colloidal particles.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
linear, colloidal stability, polyampholytes, Monte Carlo simulations, response
in
Theoretical Chemistry Accounts
volume
110
issue
3
pages
126 - 129
publisher
Springer
external identifiers
  • wos:000186604300003
  • scopus:0242438183
ISSN
1432-881X
DOI
10.1007/s00214-003-0466-y
language
English
LU publication?
yes
id
d0f500ea-fec3-4415-9211-749b3837f703 (old id 294738)
date added to LUP
2007-09-16 07:34:10
date last changed
2018-05-29 11:10:17
@article{d0f500ea-fec3-4415-9211-749b3837f703,
  abstract     = {The behavior of polyampholytes (PAs) in electric fields is investigated by Monte Carlo simulations. In bulk it is found that the response of the PA depends on the charge sequence. For small repeating units of positive and negative charges the response is linear, while bigger units results in a nonlinear response in both the induced dipole moment and the resulting polymer conformation. This is reflected in how PAs modify colloidal suspensions, and while PAs always decrease the repulsion between charged colloidal particles, some net-neutral PAs can even induce an effective attraction between the colloidal particles.},
  author       = {Khan, MO and Åkesson, Torbjörn and Woodward, CE and Jönsson, Bo},
  issn         = {1432-881X},
  keyword      = {linear,colloidal stability,polyampholytes,Monte Carlo simulations,response},
  language     = {eng},
  number       = {3},
  pages        = {126--129},
  publisher    = {Springer},
  series       = {Theoretical Chemistry Accounts},
  title        = {Nonlinear electric response of polyampholytes},
  url          = {http://dx.doi.org/10.1007/s00214-003-0466-y},
  volume       = {110},
  year         = {2003},
}