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Dynamic phase diagram and onion formation in the system C10E3/D2O

Oliviero, C; Coppola, L; Gianferri, R; Nicotera, I and Olsson, Ulf LU (2003) In Colloids and Surfaces A: Physicochemical and Engineering Aspects 228(1-3). p.85-90
Abstract
The influence of the shear on the lamellar phase, L, of the system C10E3/D2O was studied along an isoplethal path (40 wt.% C10E3) in the temperature range 25-42degreesC. A dynamic phase diagram was determined by steady-state rheometry, where by shear action the lamellar phase was transformed into multilamellar vesicles (MLVs) ("onions"). The location of "onions" in the dynamic phase diagram, depends only on the temperature and the applied shear rate, and not on the shear history. The classical lamellar phase structure is stable at rest and at low shear rates. When exposed to higher shear rates, the lamellar structure is transformed into onions. The transition from lamellae to onions is shifted to higher shear rates with increasing... (More)
The influence of the shear on the lamellar phase, L, of the system C10E3/D2O was studied along an isoplethal path (40 wt.% C10E3) in the temperature range 25-42degreesC. A dynamic phase diagram was determined by steady-state rheometry, where by shear action the lamellar phase was transformed into multilamellar vesicles (MLVs) ("onions"). The location of "onions" in the dynamic phase diagram, depends only on the temperature and the applied shear rate, and not on the shear history. The classical lamellar phase structure is stable at rest and at low shear rates. When exposed to higher shear rates, the lamellar structure is transformed into onions. The transition from lamellae to onions is shifted to higher shear rates with increasing temperature. In a range of shear rates in between the stable lamellae and

stable onion structure, the transition is incomplete. The transformation of lamellae into onions appears to be governed by the imposed strain, in agreement with earlier studies. The effect of temperature can be understood from the general property of nonionic surfactants where the monolayer spontaneous curvature decreases with increasing temperature. (C) 2003 Published by Elsevier B.V. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Lamellar phase, Multilamellar vesicles, Onions, Tri-ethyleneglycol mono n-decyl ether (C10E3), Steady state rheometry, Dynamic-phase-diagram
in
Colloids and Surfaces A: Physicochemical and Engineering Aspects
volume
228
issue
1-3
pages
85 - 90
publisher
Elsevier
external identifiers
  • wos:000187181300010
  • scopus:0242509294
ISSN
0927-7757
DOI
language
English
LU publication?
yes
id
5567a035-dc3b-4ae9-8ee2-33d004424bf0 (old id 122128)
date added to LUP
2007-07-12 09:02:35
date last changed
2018-05-29 11:15:23
@article{5567a035-dc3b-4ae9-8ee2-33d004424bf0,
  abstract     = {The influence of the shear on the lamellar phase, L, of the system C10E3/D2O was studied along an isoplethal path (40 wt.% C10E3) in the temperature range 25-42degreesC. A dynamic phase diagram was determined by steady-state rheometry, where by shear action the lamellar phase was transformed into multilamellar vesicles (MLVs) ("onions"). The location of "onions" in the dynamic phase diagram, depends only on the temperature and the applied shear rate, and not on the shear history. The classical lamellar phase structure is stable at rest and at low shear rates. When exposed to higher shear rates, the lamellar structure is transformed into onions. The transition from lamellae to onions is shifted to higher shear rates with increasing temperature. In a range of shear rates in between the stable lamellae and<br/><br>
stable onion structure, the transition is incomplete. The transformation of lamellae into onions appears to be governed by the imposed strain, in agreement with earlier studies. The effect of temperature can be understood from the general property of nonionic surfactants where the monolayer spontaneous curvature decreases with increasing temperature. (C) 2003 Published by Elsevier B.V.},
  author       = {Oliviero, C and Coppola, L and Gianferri, R and Nicotera, I and Olsson, Ulf},
  issn         = {0927-7757},
  keyword      = {Lamellar phase,Multilamellar vesicles,Onions,Tri-ethyleneglycol mono n-decyl ether (C10E3),Steady state rheometry,Dynamic-phase-diagram},
  language     = {eng},
  number       = {1-3},
  pages        = {85--90},
  publisher    = {Elsevier},
  series       = {Colloids and Surfaces A: Physicochemical and Engineering Aspects},
  title        = {Dynamic phase diagram and onion formation in the system C10E3/D2O},
  url          = {http://dx.doi.org/},
  volume       = {228},
  year         = {2003},
}