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Simple approach to polyampholytes based on chain polarizabilities

Khan, Malek O; Åkesson, Torbjörn LU and Jönsson, Bo LU (2002) In Journal of Chemical Physics 116(9). p.3917-3924
Abstract
The polarizabilities of polyampholytes have been calculated in Monte Carlo simulations. For chains with random charge topologies, the polarizability increases with the chain length and the chain flexibility. For block copolymers, the polarizability initially increases with the block size to a maximum and then decreases. The polarizability is used to characterize the interaction between polyampholytes and external electric fields. As long as the field is not too strong, the polyampholyte response will be linear. This observation is used to describe the chain behavior near charged walls, and for low to moderately charged walls the results agree well with Monte Carlo simulations. At high field strengths the chain properties are dependent on... (More)
The polarizabilities of polyampholytes have been calculated in Monte Carlo simulations. For chains with random charge topologies, the polarizability increases with the chain length and the chain flexibility. For block copolymers, the polarizability initially increases with the block size to a maximum and then decreases. The polarizability is used to characterize the interaction between polyampholytes and external electric fields. As long as the field is not too strong, the polyampholyte response will be linear. This observation is used to describe the chain behavior near charged walls, and for low to moderately charged walls the results agree well with Monte Carlo simulations. At high field strengths the chain properties are dependent on the chain topology and several cases are discussed. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Chemical Physics
volume
116
issue
9
pages
3917 - 3924
publisher
American Institute of Physics
external identifiers
  • wos:000173888400043
  • scopus:0036492221
ISSN
0021-9606
DOI
10.1063/1.1448288
language
English
LU publication?
yes
id
a8ee8d8b-f81c-4ba0-aacd-4759fc0c1d5d (old id 343438)
date added to LUP
2007-11-07 14:01:44
date last changed
2017-01-01 05:17:19
@article{a8ee8d8b-f81c-4ba0-aacd-4759fc0c1d5d,
  abstract     = {The polarizabilities of polyampholytes have been calculated in Monte Carlo simulations. For chains with random charge topologies, the polarizability increases with the chain length and the chain flexibility. For block copolymers, the polarizability initially increases with the block size to a maximum and then decreases. The polarizability is used to characterize the interaction between polyampholytes and external electric fields. As long as the field is not too strong, the polyampholyte response will be linear. This observation is used to describe the chain behavior near charged walls, and for low to moderately charged walls the results agree well with Monte Carlo simulations. At high field strengths the chain properties are dependent on the chain topology and several cases are discussed.},
  author       = {Khan, Malek O and Åkesson, Torbjörn and Jönsson, Bo},
  issn         = {0021-9606},
  language     = {eng},
  number       = {9},
  pages        = {3917--3924},
  publisher    = {American Institute of Physics},
  series       = {Journal of Chemical Physics},
  title        = {Simple approach to polyampholytes based on chain polarizabilities},
  url          = {http://dx.doi.org/10.1063/1.1448288},
  volume       = {116},
  year         = {2002},
}