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Interactions between hairy rod anionic conjugated polyelectrolytes and nonionic alkyloxyethylene surfactants in aqueous solution: Observations from cloud point behaviour

Fonseca, Sofia A.; Eusebio, A. Ermelinda; Castro, Ricardo; Burrows, Hugh D.; Tapia, Maria Jose and Olsson, Ulf LU (2007) In Journal of Colloid and Interface Science 315(2). p.805-809
Abstract
The effect of three anionic, hairy-rod fluorene based conjugated polyelectrolytes on the cloud points of the alkyloxyethylene surfactants C10E3, C12E4, C12E5, and C12E6 has been studied in aqueous solution. Although the association behaviour of these rigid polymers with surfactants is different from that of more flexible polyelectrolytes, both types of polymers are seen to increase the cloud points, probably as a consequence of associative interactions. The possible importance of Coulombic interactions is suggested by the decrease in cloud points with these systems in the presence of NaCl. With the conjugated polyelectrolytes, the effect appears to be most pronounced with poly [9,9-bis(4-phenoxybutylsulfonate)fluorene-co-2,5-thienylene],... (More)
The effect of three anionic, hairy-rod fluorene based conjugated polyelectrolytes on the cloud points of the alkyloxyethylene surfactants C10E3, C12E4, C12E5, and C12E6 has been studied in aqueous solution. Although the association behaviour of these rigid polymers with surfactants is different from that of more flexible polyelectrolytes, both types of polymers are seen to increase the cloud points, probably as a consequence of associative interactions. The possible importance of Coulombic interactions is suggested by the decrease in cloud points with these systems in the presence of NaCl. With the conjugated polyelectrolytes, the effect appears to be most pronounced with poly [9,9-bis(4-phenoxybutylsulfonate)fluorene-co-2,5-thienylene], which may result from specific interactions between oxyethylene groups and the thiophene ring. The value of cloud point behaviour in designing water based formulations for preparation of devices of these conjugated polyelectrolytes is discussed. (C) 2007 Elsevier Inc. All rights reserved. (Less)
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author
organization
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Contribution to journal
publication status
published
subject
keywords
conjugated polyelectrolytes, nonionic surfactants, cloud points
in
Journal of Colloid and Interface Science
volume
315
issue
2
pages
805 - 809
publisher
Elsevier
external identifiers
  • wos:000250064100049
  • scopus:34548839901
ISSN
1095-7103
DOI
10.1016/j.jcis.2007.07.006
language
English
LU publication?
yes
id
8650d312-9cfd-426f-9f78-16345aff91d6 (old id 655202)
date added to LUP
2007-12-10 13:48:58
date last changed
2017-01-01 04:30:39
@article{8650d312-9cfd-426f-9f78-16345aff91d6,
  abstract     = {The effect of three anionic, hairy-rod fluorene based conjugated polyelectrolytes on the cloud points of the alkyloxyethylene surfactants C10E3, C12E4, C12E5, and C12E6 has been studied in aqueous solution. Although the association behaviour of these rigid polymers with surfactants is different from that of more flexible polyelectrolytes, both types of polymers are seen to increase the cloud points, probably as a consequence of associative interactions. The possible importance of Coulombic interactions is suggested by the decrease in cloud points with these systems in the presence of NaCl. With the conjugated polyelectrolytes, the effect appears to be most pronounced with poly [9,9-bis(4-phenoxybutylsulfonate)fluorene-co-2,5-thienylene], which may result from specific interactions between oxyethylene groups and the thiophene ring. The value of cloud point behaviour in designing water based formulations for preparation of devices of these conjugated polyelectrolytes is discussed. (C) 2007 Elsevier Inc. All rights reserved.},
  author       = {Fonseca, Sofia A. and Eusebio, A. Ermelinda and Castro, Ricardo and Burrows, Hugh D. and Tapia, Maria Jose and Olsson, Ulf},
  issn         = {1095-7103},
  keyword      = {conjugated polyelectrolytes,nonionic surfactants,cloud points},
  language     = {eng},
  number       = {2},
  pages        = {805--809},
  publisher    = {Elsevier},
  series       = {Journal of Colloid and Interface Science},
  title        = {Interactions between hairy rod anionic conjugated polyelectrolytes and nonionic alkyloxyethylene surfactants in aqueous solution: Observations from cloud point behaviour},
  url          = {http://dx.doi.org/10.1016/j.jcis.2007.07.006},
  volume       = {315},
  year         = {2007},
}