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Thermodynamics of a nonionic sponge phase.

Le, Thao LU ; Olsson, Ulf LU ; Wennerström, Håkan LU and Schurtenberger, P (1999) In Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics1990-01-01+01:002001-01-01+01:00 60(4 Pt B). p.9-4300
Abstract
Different suggestions for the mechanism governing the narrow stability of the L(3) (sponge) phase have led to a series of debates in recent years. There have been several models developed to describe such a mechanism via thermodynamics. To date, experimental data are insufficient to test present theories. In this study, we revisit the sponge phase with two series of thermodynamic data performed on the well-characterized C(12)E(5)-n-decane-H(2)O system. These thermodynamic data sets stem from phase equilibrium and static light scattering experiments designed to link system-specific parameters such as the temperature dependence of the spontaneous curvature H(o) and the two bending moduli kappa and (-)kappa, which have only been loosely... (More)
Different suggestions for the mechanism governing the narrow stability of the L(3) (sponge) phase have led to a series of debates in recent years. There have been several models developed to describe such a mechanism via thermodynamics. To date, experimental data are insufficient to test present theories. In this study, we revisit the sponge phase with two series of thermodynamic data performed on the well-characterized C(12)E(5)-n-decane-H(2)O system. These thermodynamic data sets stem from phase equilibrium and static light scattering experiments designed to link system-specific parameters such as the temperature dependence of the spontaneous curvature H(o) and the two bending moduli kappa and (-)kappa, which have only been loosely connected in earlier experiments. The use of a well-characterized system is important in that it allows usage of molecular descriptors from earlier studies to reduce fit parameters. Another advantage for using this system is that its phase behavior is analogous to a two-component system which, from an experimental standpoint, is more practical to perform accurate measurements and, from a theoretical standpoint, more simple to model. In the present investigation, we use these tools to quantitatively test parameters obtained by different experimental techniques and assumptions inherited in theoretical models designed to interpret them. (Less)
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author
organization
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type
Contribution to journal
publication status
published
subject
in
Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics1990-01-01+01:002001-01-01+01:00
volume
60
issue
4 Pt B
pages
9 - 4300
publisher
American Physical Society
external identifiers
  • scopus:0000870963
ISSN
1063-651X
DOI
10.1103/PhysRevE.60.4300
language
English
LU publication?
yes
id
0e890fe7-e5ec-4a61-8c37-907cfcee850f (old id 107789)
date added to LUP
2007-07-11 15:31:30
date last changed
2017-08-27 05:40:05
@article{0e890fe7-e5ec-4a61-8c37-907cfcee850f,
  abstract     = {Different suggestions for the mechanism governing the narrow stability of the L(3) (sponge) phase have led to a series of debates in recent years. There have been several models developed to describe such a mechanism via thermodynamics. To date, experimental data are insufficient to test present theories. In this study, we revisit the sponge phase with two series of thermodynamic data performed on the well-characterized C(12)E(5)-n-decane-H(2)O system. These thermodynamic data sets stem from phase equilibrium and static light scattering experiments designed to link system-specific parameters such as the temperature dependence of the spontaneous curvature H(o) and the two bending moduli kappa and (-)kappa, which have only been loosely connected in earlier experiments. The use of a well-characterized system is important in that it allows usage of molecular descriptors from earlier studies to reduce fit parameters. Another advantage for using this system is that its phase behavior is analogous to a two-component system which, from an experimental standpoint, is more practical to perform accurate measurements and, from a theoretical standpoint, more simple to model. In the present investigation, we use these tools to quantitatively test parameters obtained by different experimental techniques and assumptions inherited in theoretical models designed to interpret them.},
  author       = {Le, Thao and Olsson, Ulf and Wennerström, Håkan and Schurtenberger, P},
  issn         = {1063-651X},
  language     = {eng},
  number       = {4 Pt B},
  pages        = {9--4300},
  publisher    = {American Physical Society},
  series       = {Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics1990-01-01+01:002001-01-01+01:00},
  title        = {Thermodynamics of a nonionic sponge phase.},
  url          = {http://dx.doi.org/10.1103/PhysRevE.60.4300},
  volume       = {60},
  year         = {1999},
}