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Density functional theory for polymer fluids with molecular weight polydispersity

Woodward, Clifford E and Forsman, Jan LU (2008) In Physical Review Letters 100(9).
Abstract
We develop a density-functional theory for polydisperse polymer fluids satisfying the Schulz-Flory distribution. The resulting equations are remarkably simple and quickly solved, the computational effort scaling with the polydispersity index, rather than the average molecular weight. Equilibrium, or "living", polymers enter naturally as very polydisperse samples. We illustrate the importance of polydispersity on colloid stability by investigating interactions between adsorbing and nonadsorbing surfaces. Significant free energy barriers are present in monodisperse samples, but these diminish as the degree of polydispersity increases.
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review Letters
volume
100
issue
9
publisher
American Physical Society
external identifiers
  • wos:000253764500076
  • scopus:40849120781
ISSN
1079-7114
DOI
10.1103/PhysRevLett.100.098301
language
English
LU publication?
yes
id
ed4df723-28dc-4dbf-b15e-564a9e5ac614 (old id 995558)
date added to LUP
2008-01-29 18:23:39
date last changed
2017-05-21 03:32:47
@article{ed4df723-28dc-4dbf-b15e-564a9e5ac614,
  abstract     = {We develop a density-functional theory for polydisperse polymer fluids satisfying the Schulz-Flory distribution. The resulting equations are remarkably simple and quickly solved, the computational effort scaling with the polydispersity index, rather than the average molecular weight. Equilibrium, or "living", polymers enter naturally as very polydisperse samples. We illustrate the importance of polydispersity on colloid stability by investigating interactions between adsorbing and nonadsorbing surfaces. Significant free energy barriers are present in monodisperse samples, but these diminish as the degree of polydispersity increases.},
  articleno    = {098301},
  author       = {Woodward, Clifford E and Forsman, Jan},
  issn         = {1079-7114},
  language     = {eng},
  number       = {9},
  publisher    = {American Physical Society},
  series       = {Physical Review Letters},
  title        = {Density functional theory for polymer fluids with molecular weight polydispersity},
  url          = {http://dx.doi.org/10.1103/PhysRevLett.100.098301},
  volume       = {100},
  year         = {2008},
}