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Self-organization of double-chained and pseudodouble-chained surfactants: counterion and geometry effects

Marques, E F; Regev, O; Khan, Ali LU and Lindman, Björn LU (2003) In Advances in Colloid and Interface Science 100-102. p.83-104
Abstract
Self-organization in aqueous systems based on ionic surfactants, and their mixtures, can be broadly understood by a balance between the packing properties of the surfactants and double-layer electrostatic interactions. While the equilibrium properties of micellar systems have been extensively studied and are understood, those of bilayer systems are less well characterized. Double-chained and pseudodouble-chained (or catanionic) surfactants are among the amphiphiles which typically form bilayer structures, such as lamellar liquid-crystalline phases and vesicles. In the past 10-15 years, an experimental effort has been made to get deeper insight into their aggregation patterns. With the double-chai

ed amphiphiles, by changing... (More)
Self-organization in aqueous systems based on ionic surfactants, and their mixtures, can be broadly understood by a balance between the packing properties of the surfactants and double-layer electrostatic interactions. While the equilibrium properties of micellar systems have been extensively studied and are understood, those of bilayer systems are less well characterized. Double-chained and pseudodouble-chained (or catanionic) surfactants are among the amphiphiles which typically form bilayer structures, such as lamellar liquid-crystalline phases and vesicles. In the past 10-15 years, an experimental effort has been made to get deeper insight into their aggregation patterns. With the double-chai

ed amphiphiles, by changing counterion, adding salt or adding anionic surfactant, there are possibilities to depart from the bilayer aggregate in a controlled manner. This is demonstrated by several studies on the didodecyldimethylammonium bromide surfactant. Mixtures of cationic and anionic surfactants yield the catanionics, surfactants of the swelling type, and also show a rich phase behavior per se. A variety of liquid-crystalline phases and, in dilute regimes, equilibrium vesicles and different micellar shapes are often encountered. Phase diagrams and detailed structural studies, based on several techniques (NMR, microscopy and scattering methods), have been reported, as well as theoretical studies. The main features and conclusions emerging from such investigations are presented. (C) 2002 Elsevier Science B.V. All rights reserved. (Less)
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organization
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Contribution to journal
publication status
published
subject
keywords
Double-chained surfactants, Catanionic surfactants, Phase behavior, Bilayers, Electrostatic interactions
in
Advances in Colloid and Interface Science
volume
100-102
pages
83 - 104
publisher
Elsevier
external identifiers
  • wos:000182720500005
  • scopus:0037469894
ISSN
1873-3727
DOI
language
English
LU publication?
yes
id
bbe92a7c-4ca4-47be-b3b1-d7de379c1ee6 (old id 122097)
date added to LUP
2007-07-11 16:21:53
date last changed
2018-06-24 04:31:30
@article{bbe92a7c-4ca4-47be-b3b1-d7de379c1ee6,
  abstract     = {Self-organization in aqueous systems based on ionic surfactants, and their mixtures, can be broadly understood by a balance between the packing properties of the surfactants and double-layer electrostatic interactions. While the equilibrium properties of micellar systems have been extensively studied and are understood, those of bilayer systems are less well characterized. Double-chained and pseudodouble-chained (or catanionic) surfactants are among the amphiphiles which typically form bilayer structures, such as lamellar liquid-crystalline phases and vesicles. In the past 10-15 years, an experimental effort has been made to get deeper insight into their aggregation patterns. With the double-chai<br/><br>
ed amphiphiles, by changing counterion, adding salt or adding anionic surfactant, there are possibilities to depart from the bilayer aggregate in a controlled manner. This is demonstrated by several studies on the didodecyldimethylammonium bromide surfactant. Mixtures of cationic and anionic surfactants yield the catanionics, surfactants of the swelling type, and also show a rich phase behavior per se. A variety of liquid-crystalline phases and, in dilute regimes, equilibrium vesicles and different micellar shapes are often encountered. Phase diagrams and detailed structural studies, based on several techniques (NMR, microscopy and scattering methods), have been reported, as well as theoretical studies. The main features and conclusions emerging from such investigations are presented. (C) 2002 Elsevier Science B.V. All rights reserved.},
  author       = {Marques, E F and Regev, O and Khan, Ali and Lindman, Björn},
  issn         = {1873-3727},
  keyword      = {Double-chained surfactants,Catanionic surfactants,Phase behavior,Bilayers,Electrostatic interactions},
  language     = {eng},
  pages        = {83--104},
  publisher    = {Elsevier},
  series       = {Advances in Colloid and Interface Science},
  title        = {Self-organization of double-chained and pseudodouble-chained surfactants: counterion and geometry effects},
  url          = {http://dx.doi.org/},
  volume       = {100-102},
  year         = {2003},
}