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Dynamic Phase Diagram of a Nonionic Surfactant Lamellar Phase

Gentile, Luigi LU ; Behrens, Manja LU ; Balog, Sandor; Mortensen, Kell; Ranieri, Giuseppe A. and Olsson, Ulf LU (2014) In The Journal of Physical Chemistry Part B 118(13). p.3622-3629
Abstract
The dynamic phase diagram of triethylene glycol dodecyl ether (C12E3) in D2O was determined for 40, 50, and 60 wt % of surfactant. The shear flow effect on the nonionic lamellar phase was investigated as a function of temperature and concentration. The transition from planar lamellae (L-alpha)-to-multilamellar vesicles (MLVs) was characterized by means of rheology, rheo-small-angle neutron and light scattering. New insight into the nature of the transition region between L-alpha and the MLVs state is provided. A disorder-order transition was also observed by SANS. This is attributed to a transition from disordered MLVs to a close-packed array of MLV's with slightly higher order than before. Moreover flow instability was observed in the... (More)
The dynamic phase diagram of triethylene glycol dodecyl ether (C12E3) in D2O was determined for 40, 50, and 60 wt % of surfactant. The shear flow effect on the nonionic lamellar phase was investigated as a function of temperature and concentration. The transition from planar lamellae (L-alpha)-to-multilamellar vesicles (MLVs) was characterized by means of rheology, rheo-small-angle neutron and light scattering. New insight into the nature of the transition region between L-alpha and the MLVs state is provided. A disorder-order transition was also observed by SANS. This is attributed to a transition from disordered MLVs to a close-packed array of MLV's with slightly higher order than before. Moreover flow instability was observed in the shear-thickening regime at 40 degrees C. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
The Journal of Physical Chemistry Part B
volume
118
issue
13
pages
3622 - 3629
publisher
The American Chemical Society
external identifiers
  • wos:000333948200016
  • scopus:84898072382
ISSN
1520-5207
DOI
10.1021/jp5009797
language
English
LU publication?
yes
id
fe29830f-7778-4b89-9056-e37d8105822d (old id 4439552)
date added to LUP
2014-05-20 12:32:19
date last changed
2017-10-08 04:06:07
@article{fe29830f-7778-4b89-9056-e37d8105822d,
  abstract     = {The dynamic phase diagram of triethylene glycol dodecyl ether (C12E3) in D2O was determined for 40, 50, and 60 wt % of surfactant. The shear flow effect on the nonionic lamellar phase was investigated as a function of temperature and concentration. The transition from planar lamellae (L-alpha)-to-multilamellar vesicles (MLVs) was characterized by means of rheology, rheo-small-angle neutron and light scattering. New insight into the nature of the transition region between L-alpha and the MLVs state is provided. A disorder-order transition was also observed by SANS. This is attributed to a transition from disordered MLVs to a close-packed array of MLV's with slightly higher order than before. Moreover flow instability was observed in the shear-thickening regime at 40 degrees C.},
  author       = {Gentile, Luigi and Behrens, Manja and Balog, Sandor and Mortensen, Kell and Ranieri, Giuseppe A. and Olsson, Ulf},
  issn         = {1520-5207},
  language     = {eng},
  number       = {13},
  pages        = {3622--3629},
  publisher    = {The American Chemical Society},
  series       = {The Journal of Physical Chemistry Part B},
  title        = {Dynamic Phase Diagram of a Nonionic Surfactant Lamellar Phase},
  url          = {http://dx.doi.org/10.1021/jp5009797},
  volume       = {118},
  year         = {2014},
}