Abstract:
It has been shown that lyotropic lamellar phases under shear flow form structures corresponding to a close packed assembly of monodisperse multilamellar vesicles (onions). The size, which is fixed by the shear rate, can vary from a few microns to a tenth of a micron. In this study, we investigate for the first time the transient behaviour of size changes of onions under shear flow by means of small angle light scattering, direct microscopic observations, and conductivity measurements. We evidence two regimes: continuous and discontinuous. The nature of which (continuous or discontinuous) depends on the initial and final shear rate, and can be described by a dynamic phase diagram.
Similar content being viewed by others
Author information
Authors and Affiliations
Additional information
Received: 14 November 1997 / Received in final form: 2 March 1998 / Accepted: 9 March 1998
Rights and permissions
About this article
Cite this article
Panizza, P., Colin, A., Coulon, C. et al. A dynamic study of onion phases under shear flow: size changes. Eur. Phys. J. B 4, 65–74 (1998). https://doi.org/10.1007/s100510050352
Issue Date:
DOI: https://doi.org/10.1007/s100510050352