General patterns of the phase behavior of mixtures of H2O, alkanes, alkyl glucosides, and cosurfactants
(2002) In Langmuir 18(8). p.3058-3067- Abstract
- We demonstrate how rather hydrophilic surfactants can be used for solubilizing simultaneously water and alkane. The required hydrophilic-lipophilic balance can be achieved by the addition of a medium-chain alcohol, that is, a hydrophobic cosurfactant. Specifically, the phase behavior of the quaternary water-n-octane-n-octyl beta-glucopyranoside (C(8)G(1))-n-octanol (C8E0) system has been investigated. Sugar surfactants, in general, are hydrophilic and, because of the comparatively large number of hydroxyl groups, much less temperature-sensitive than the well-known alkylpolyglycolether (CiEj) surfactants. Therefore, one has to resort to tuning the phase behavior by mixing with a hydrophobic cosurfactant. Once this is done, the phase... (More)
- We demonstrate how rather hydrophilic surfactants can be used for solubilizing simultaneously water and alkane. The required hydrophilic-lipophilic balance can be achieved by the addition of a medium-chain alcohol, that is, a hydrophobic cosurfactant. Specifically, the phase behavior of the quaternary water-n-octane-n-octyl beta-glucopyranoside (C(8)G(1))-n-octanol (C8E0) system has been investigated. Sugar surfactants, in general, are hydrophilic and, because of the comparatively large number of hydroxyl groups, much less temperature-sensitive than the well-known alkylpolyglycolether (CiEj) surfactants. Therefore, one has to resort to tuning the phase behavior by mixing with a hydrophobic cosurfactant. Once this is done, the phase behavior mimics that of water-alkane-CiEj microemulsions. To show this, the trajectory of the middle-phase is determined as the phase inversion is passed. A scaling of the trajectory onto the trajectories of conventional temperature-sensitive ternary microemulsions is possible after the composition (i.e. the fraction of n-octanol) of the mixed amphiphilic film is determined from phase behavior and density measurements. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/340208
- author
- Sottmann, T ; Kluge, K ; Strey, R ; Reimer, Johan LU and Söderman, Olle LU
- organization
- publishing date
- 2002
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Langmuir
- volume
- 18
- issue
- 8
- pages
- 3058 - 3067
- publisher
- The American Chemical Society (ACS)
- external identifiers
-
- wos:000174978000019
- scopus:0037117929
- ISSN
- 0743-7463
- DOI
- 10.1021/la011665x
- language
- English
- LU publication?
- yes
- id
- 985e563c-8fb8-47bf-acde-ca64102fb655 (old id 340208)
- date added to LUP
- 2016-04-01 12:28:33
- date last changed
- 2022-02-26 07:33:16
@article{985e563c-8fb8-47bf-acde-ca64102fb655,
abstract = {{We demonstrate how rather hydrophilic surfactants can be used for solubilizing simultaneously water and alkane. The required hydrophilic-lipophilic balance can be achieved by the addition of a medium-chain alcohol, that is, a hydrophobic cosurfactant. Specifically, the phase behavior of the quaternary water-n-octane-n-octyl beta-glucopyranoside (C(8)G(1))-n-octanol (C8E0) system has been investigated. Sugar surfactants, in general, are hydrophilic and, because of the comparatively large number of hydroxyl groups, much less temperature-sensitive than the well-known alkylpolyglycolether (CiEj) surfactants. Therefore, one has to resort to tuning the phase behavior by mixing with a hydrophobic cosurfactant. Once this is done, the phase behavior mimics that of water-alkane-CiEj microemulsions. To show this, the trajectory of the middle-phase is determined as the phase inversion is passed. A scaling of the trajectory onto the trajectories of conventional temperature-sensitive ternary microemulsions is possible after the composition (i.e. the fraction of n-octanol) of the mixed amphiphilic film is determined from phase behavior and density measurements.}},
author = {{Sottmann, T and Kluge, K and Strey, R and Reimer, Johan and Söderman, Olle}},
issn = {{0743-7463}},
language = {{eng}},
number = {{8}},
pages = {{3058--3067}},
publisher = {{The American Chemical Society (ACS)}},
series = {{Langmuir}},
title = {{General patterns of the phase behavior of mixtures of H2O, alkanes, alkyl glucosides, and cosurfactants}},
url = {{http://dx.doi.org/10.1021/la011665x}},
doi = {{10.1021/la011665x}},
volume = {{18}},
year = {{2002}},
}