Superswollen Microemulsions Stabilized by Shear and Trapped by a Temperature Quench
(2011) In Langmuir 27(17). p.10447-10454- Abstract
- We studied the solubilization of oil in the C16E8/hexadecane/H2O system. Close to the phase inversion temperature (PIT), the system, at equilibrium, can form either homogeneous states (i.e., microemulsions) at high surfactant concentrations or three-phase states at lower concentrations. We show that, under gentle shear, at a line we named the clearing boundary (CB), located a few degrees below the PIT, the system is homogeneous regardless of the surfactant concentration. We relate this shift of the microemulsion boundary to shear-induced disruption of the asymmetric bicontinuous structure. Although this state quickly relaxes to equilibrium when shear is stopped, we show that is still possible to trap it into a metastable state through a... (More)
- We studied the solubilization of oil in the C16E8/hexadecane/H2O system. Close to the phase inversion temperature (PIT), the system, at equilibrium, can form either homogeneous states (i.e., microemulsions) at high surfactant concentrations or three-phase states at lower concentrations. We show that, under gentle shear, at a line we named the clearing boundary (CB), located a few degrees below the PIT, the system is homogeneous regardless of the surfactant concentration. We relate this shift of the microemulsion boundary to shear-induced disruption of the asymmetric bicontinuous structure. Although this state quickly relaxes to equilibrium when shear is stopped, we show that is still possible to trap it into a metastable state through a temperature quench. This method is the sub-PIT emulsification that we described in a previous work (Roger et al. Langmuir 2010, 26, 3860-3867). (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/2159241
- author
- Roger, Kevin ; Olsson, Ulf LU ; Zackrisson Oskolkova, Malin LU ; Lindner, Peter and Cabane, Bernard
- organization
- publishing date
- 2011
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Langmuir
- volume
- 27
- issue
- 17
- pages
- 10447 - 10454
- publisher
- The American Chemical Society (ACS)
- external identifiers
-
- wos:000294373300018
- scopus:80052232621
- pmid:21714541
- ISSN
- 0743-7463
- DOI
- 10.1021/la201685x
- language
- English
- LU publication?
- yes
- id
- 89a666d4-40bd-4cda-a705-5c9f8a34ed3c (old id 2159241)
- date added to LUP
- 2016-04-01 10:34:17
- date last changed
- 2022-04-04 19:15:07
@article{89a666d4-40bd-4cda-a705-5c9f8a34ed3c,
abstract = {{We studied the solubilization of oil in the C16E8/hexadecane/H2O system. Close to the phase inversion temperature (PIT), the system, at equilibrium, can form either homogeneous states (i.e., microemulsions) at high surfactant concentrations or three-phase states at lower concentrations. We show that, under gentle shear, at a line we named the clearing boundary (CB), located a few degrees below the PIT, the system is homogeneous regardless of the surfactant concentration. We relate this shift of the microemulsion boundary to shear-induced disruption of the asymmetric bicontinuous structure. Although this state quickly relaxes to equilibrium when shear is stopped, we show that is still possible to trap it into a metastable state through a temperature quench. This method is the sub-PIT emulsification that we described in a previous work (Roger et al. Langmuir 2010, 26, 3860-3867).}},
author = {{Roger, Kevin and Olsson, Ulf and Zackrisson Oskolkova, Malin and Lindner, Peter and Cabane, Bernard}},
issn = {{0743-7463}},
language = {{eng}},
number = {{17}},
pages = {{10447--10454}},
publisher = {{The American Chemical Society (ACS)}},
series = {{Langmuir}},
title = {{Superswollen Microemulsions Stabilized by Shear and Trapped by a Temperature Quench}},
url = {{http://dx.doi.org/10.1021/la201685x}},
doi = {{10.1021/la201685x}},
volume = {{27}},
year = {{2011}},
}