Shear-Induced Transitions between a Planar Lamellar Phase and Multilamellar Vesicles: Continuous versus Discontinuous Transformation.
(2008) In Langmuir 24(13). p.6480-6486- Abstract
- The shear-induced transitions between an oriented lamellar phase and shear-induced multilamellar vesicles (MLVs) in a nonionic surfactant system were studied by deuterium rheo-NMR spectroscopy as a function of time in start-up experiments at several temperatures and shear rates. By starting from an initial state of oriented lamellae and observing the transformation to the final steady state of MLVs and vice-versa, two different mechanisms were found, depending on the direction of the transition and the initial state. The transition is continuous when MLVs are formed, starting from the oriented lamellar phase. On the other hand, a discontinuous nucleation-and-growth process with a coexistence region is observed when transforming MLVs into... (More)
- The shear-induced transitions between an oriented lamellar phase and shear-induced multilamellar vesicles (MLVs) in a nonionic surfactant system were studied by deuterium rheo-NMR spectroscopy as a function of time in start-up experiments at several temperatures and shear rates. By starting from an initial state of oriented lamellae and observing the transformation to the final steady state of MLVs and vice-versa, two different mechanisms were found, depending on the direction of the transition and the initial state. The transition is continuous when MLVs are formed, starting from the oriented lamellar phase. On the other hand, a discontinuous nucleation-and-growth process with a coexistence region is observed when transforming MLVs into an oriented lamellar phase. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1169341
- author
- Medronho, Bruno LU ; Shafaei, S ; Szopko, R ; Miguel, M ; Olsson, Ulf LU and Schmidt, C
- organization
- publishing date
- 2008
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Langmuir
- volume
- 24
- issue
- 13
- pages
- 6480 - 6486
- publisher
- The American Chemical Society (ACS)
- external identifiers
-
- wos:000257101100016
- pmid:18517228
- scopus:47349127845
- pmid:18517228
- ISSN
- 0743-7463
- DOI
- 10.1021/la800326a
- language
- English
- LU publication?
- yes
- id
- 6842342b-36d3-447c-a98e-fef88603363e (old id 1169341)
- date added to LUP
- 2016-04-01 11:51:44
- date last changed
- 2022-04-13 02:30:04
@article{6842342b-36d3-447c-a98e-fef88603363e, abstract = {{The shear-induced transitions between an oriented lamellar phase and shear-induced multilamellar vesicles (MLVs) in a nonionic surfactant system were studied by deuterium rheo-NMR spectroscopy as a function of time in start-up experiments at several temperatures and shear rates. By starting from an initial state of oriented lamellae and observing the transformation to the final steady state of MLVs and vice-versa, two different mechanisms were found, depending on the direction of the transition and the initial state. The transition is continuous when MLVs are formed, starting from the oriented lamellar phase. On the other hand, a discontinuous nucleation-and-growth process with a coexistence region is observed when transforming MLVs into an oriented lamellar phase.}}, author = {{Medronho, Bruno and Shafaei, S and Szopko, R and Miguel, M and Olsson, Ulf and Schmidt, C}}, issn = {{0743-7463}}, language = {{eng}}, number = {{13}}, pages = {{6480--6486}}, publisher = {{The American Chemical Society (ACS)}}, series = {{Langmuir}}, title = {{Shear-Induced Transitions between a Planar Lamellar Phase and Multilamellar Vesicles: Continuous versus Discontinuous Transformation.}}, url = {{http://dx.doi.org/10.1021/la800326a}}, doi = {{10.1021/la800326a}}, volume = {{24}}, year = {{2008}}, }