Reversible size of shear-induced multi-lamellar vesicles
(2005) In Colloid and Polymer Science 284(3). p.317-321- Abstract
- We have investigated the reversibility in the shear-induced multi-lamellar vesicle (MLV) size during stepwise cycling of the shear rate by employing common rheometry, polarized light microscopy and rheo-optic techniques. We thus address the question whether there is a true MLV steady state, irrespective of history. The system studied, was the nonionic surfactant triethylene glycol decyl ether (C10E3) with a concentration of 40 wt.% in (DO)-O-2 and a constant temperature of 25 degrees C. It was found that the MLV size varies reversibly with varying shear rate, and hence there exists a true steady state in the presence of shear flow. The experimental observations of reversibility are however restricted to higher shear rates. Because the... (More)
- We have investigated the reversibility in the shear-induced multi-lamellar vesicle (MLV) size during stepwise cycling of the shear rate by employing common rheometry, polarized light microscopy and rheo-optic techniques. We thus address the question whether there is a true MLV steady state, irrespective of history. The system studied, was the nonionic surfactant triethylene glycol decyl ether (C10E3) with a concentration of 40 wt.% in (DO)-O-2 and a constant temperature of 25 degrees C. It was found that the MLV size varies reversibly with varying shear rate, and hence there exists a true steady state in the presence of shear flow. The experimental observations of reversibility are however restricted to higher shear rates. Because the transformation of the size results from the shear strain, the process is very slow at lower shear rates, where the steady state cannot be reached within a reasonable experimental time. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/157493
- author
- Medronho, B ; Fujii, S ; Richtering, W ; Miguel, Maria LU and Olsson, Ulf LU
- organization
- publishing date
- 2005
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Colloid and Polymer Science
- volume
- 284
- issue
- 3
- pages
- 317 - 321
- publisher
- Springer
- external identifiers
-
- wos:000234212500011
- scopus:28944443127
- ISSN
- 0303-402X
- DOI
- 10.1007/s00396-005-1367-5
- language
- English
- LU publication?
- yes
- id
- 2d6d287f-37d7-45b3-8a17-33aaf1a4b8bc (old id 157493)
- date added to LUP
- 2016-04-01 11:50:46
- date last changed
- 2022-01-26 19:09:01
@article{2d6d287f-37d7-45b3-8a17-33aaf1a4b8bc,
abstract = {{We have investigated the reversibility in the shear-induced multi-lamellar vesicle (MLV) size during stepwise cycling of the shear rate by employing common rheometry, polarized light microscopy and rheo-optic techniques. We thus address the question whether there is a true MLV steady state, irrespective of history. The system studied, was the nonionic surfactant triethylene glycol decyl ether (C10E3) with a concentration of 40 wt.% in (DO)-O-2 and a constant temperature of 25 degrees C. It was found that the MLV size varies reversibly with varying shear rate, and hence there exists a true steady state in the presence of shear flow. The experimental observations of reversibility are however restricted to higher shear rates. Because the transformation of the size results from the shear strain, the process is very slow at lower shear rates, where the steady state cannot be reached within a reasonable experimental time.}},
author = {{Medronho, B and Fujii, S and Richtering, W and Miguel, Maria and Olsson, Ulf}},
issn = {{0303-402X}},
language = {{eng}},
number = {{3}},
pages = {{317--321}},
publisher = {{Springer}},
series = {{Colloid and Polymer Science}},
title = {{Reversible size of shear-induced multi-lamellar vesicles}},
url = {{http://dx.doi.org/10.1007/s00396-005-1367-5}},
doi = {{10.1007/s00396-005-1367-5}},
volume = {{284}},
year = {{2005}},
}