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Effect of Shear Rates on the MLV Formation and MLV Stability Region in the C12E5/D2O System: Rheology and Rheo-NMR and Rheo-SANS Experiments

Gentile, Luigi; Rossi, Cesare Oliviero; Olsson, Ulf LU and Ranieri, Giuseppe Antonio (2011) In Langmuir 27(6). p.2088-2092
Abstract
At high temperatures, pentaethylene glycol monododecyl ether (C12E5) in D2O forms a swollen lamellar phase. This letter reports the shear induced multilamellar vesicle (MLV) formation in a sample that contains 40 wt % C12E5 dissolved in D2O at 55 degrees C. This transition has been investigated by time-resolved rheo-nuclear magnetic resonance, rheo small angle neutron scattering, and rheometry. The typical transient viscosity behavior of MLV formation has been discovered at 1 s(-1). For the first time, it has been found that MLVs are not stable over time when subjected to high shear rates. Our results show that the MLV stability is confined in a narrow region in the range 1-10 s(-1) shear rates. This is not observed for other CnEm... (More)
At high temperatures, pentaethylene glycol monododecyl ether (C12E5) in D2O forms a swollen lamellar phase. This letter reports the shear induced multilamellar vesicle (MLV) formation in a sample that contains 40 wt % C12E5 dissolved in D2O at 55 degrees C. This transition has been investigated by time-resolved rheo-nuclear magnetic resonance, rheo small angle neutron scattering, and rheometry. The typical transient viscosity behavior of MLV formation has been discovered at 1 s(-1). For the first time, it has been found that MLVs are not stable over time when subjected to high shear rates. Our results show that the MLV stability is confined in a narrow region in the range 1-10 s(-1) shear rates. This is not observed for other CnEm surfactants. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Langmuir
volume
27
issue
6
pages
2088 - 2092
publisher
The American Chemical Society
external identifiers
  • wos:000288039500004
  • scopus:79952600356
ISSN
0743-7463
DOI
10.1021/la1046047
language
English
LU publication?
yes
id
317f2c50-b4ab-4e7b-a641-46fec4dc2ebb (old id 1868317)
date added to LUP
2011-04-19 12:39:10
date last changed
2017-08-06 03:24:53
@article{317f2c50-b4ab-4e7b-a641-46fec4dc2ebb,
  abstract     = {At high temperatures, pentaethylene glycol monododecyl ether (C12E5) in D2O forms a swollen lamellar phase. This letter reports the shear induced multilamellar vesicle (MLV) formation in a sample that contains 40 wt % C12E5 dissolved in D2O at 55 degrees C. This transition has been investigated by time-resolved rheo-nuclear magnetic resonance, rheo small angle neutron scattering, and rheometry. The typical transient viscosity behavior of MLV formation has been discovered at 1 s(-1). For the first time, it has been found that MLVs are not stable over time when subjected to high shear rates. Our results show that the MLV stability is confined in a narrow region in the range 1-10 s(-1) shear rates. This is not observed for other CnEm surfactants.},
  author       = {Gentile, Luigi and Rossi, Cesare Oliviero and Olsson, Ulf and Ranieri, Giuseppe Antonio},
  issn         = {0743-7463},
  language     = {eng},
  number       = {6},
  pages        = {2088--2092},
  publisher    = {The American Chemical Society},
  series       = {Langmuir},
  title        = {Effect of Shear Rates on the MLV Formation and MLV Stability Region in the C12E5/D2O System: Rheology and Rheo-NMR and Rheo-SANS Experiments},
  url          = {http://dx.doi.org/10.1021/la1046047},
  volume       = {27},
  year         = {2011},
}