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Equation of state of PEG/PEO in good solvent. Comparison between a one-parameter EOS and experiments

Li, Joaquim LU ; Turesson, Martin LU ; Anderberg Haglund, Caroline LU ; Cabane, Bernard and Skepö, Marie LU (2015) In Polymer 80. p.205-213
Abstract
We investigate, through osmotic pressure measurements, the validity of the single-parameter equation of state (EOS) for solutions of polyethylene glycols in water, by Cohen et al.(1,2) We show that it is physically meaningful and that a reasonable good correspondence between the osmotic pressures for PEG35 in large range of concentrations is obtained. We also take the chain length dependence into account in our analysis, as suggested by Cohen et al. By recalculating the experimental pressures in the paper by Jonsson et al. 3 applying the new calibration curve, which is based on the experimental results obtained in this study and the EOS obtained by Cohen et al., there is almost a perfect correspondence between the simulations and the... (More)
We investigate, through osmotic pressure measurements, the validity of the single-parameter equation of state (EOS) for solutions of polyethylene glycols in water, by Cohen et al.(1,2) We show that it is physically meaningful and that a reasonable good correspondence between the osmotic pressures for PEG35 in large range of concentrations is obtained. We also take the chain length dependence into account in our analysis, as suggested by Cohen et al. By recalculating the experimental pressures in the paper by Jonsson et al. 3 applying the new calibration curve, which is based on the experimental results obtained in this study and the EOS obtained by Cohen et al., there is almost a perfect correspondence between the simulations and the experiments. These results have implications for correctly probing macromolecular interactions in wide range of systems when applying the osmotic stress method. (C) 2015 Elsevier Ltd. All rights reserved. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
PEG/PEO, Equation of state, Osmotic pressure, Scaling function
in
Polymer
volume
80
pages
205 - 213
publisher
Elsevier
external identifiers
  • wos:000365813500023
  • scopus:84946574550
ISSN
0032-3861
DOI
10.1016/j.polymer.2015.10.056
language
English
LU publication?
yes
id
a2f97e66-e718-43e8-ae8c-b47e8b65919e (old id 8560207)
date added to LUP
2016-01-26 09:02:55
date last changed
2017-10-22 03:58:25
@article{a2f97e66-e718-43e8-ae8c-b47e8b65919e,
  abstract     = {We investigate, through osmotic pressure measurements, the validity of the single-parameter equation of state (EOS) for solutions of polyethylene glycols in water, by Cohen et al.(1,2) We show that it is physically meaningful and that a reasonable good correspondence between the osmotic pressures for PEG35 in large range of concentrations is obtained. We also take the chain length dependence into account in our analysis, as suggested by Cohen et al. By recalculating the experimental pressures in the paper by Jonsson et al. 3 applying the new calibration curve, which is based on the experimental results obtained in this study and the EOS obtained by Cohen et al., there is almost a perfect correspondence between the simulations and the experiments. These results have implications for correctly probing macromolecular interactions in wide range of systems when applying the osmotic stress method. (C) 2015 Elsevier Ltd. All rights reserved.},
  author       = {Li, Joaquim and Turesson, Martin and Anderberg Haglund, Caroline and Cabane, Bernard and Skepö, Marie},
  issn         = {0032-3861},
  keyword      = {PEG/PEO,Equation of state,Osmotic pressure,Scaling function},
  language     = {eng},
  pages        = {205--213},
  publisher    = {Elsevier},
  series       = {Polymer},
  title        = {Equation of state of PEG/PEO in good solvent. Comparison between a one-parameter EOS and experiments},
  url          = {http://dx.doi.org/10.1016/j.polymer.2015.10.056},
  volume       = {80},
  year         = {2015},
}