Reference : Dynamics of the swollen lamellar phase
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Physics
http://hdl.handle.net/10993/7742
Dynamics of the swollen lamellar phase
English
Schilling, Tanja mailto [Institut für Festkörperforschung, Forschungszentrum Jülich, Germany]
Theissen, O. [Institut für Festkörperforschung, Forschungszentrum Jülich / Max-Planck-Institut für Kolloid- und Grenzflächenforschung, Germany]
Gompper, G. [Institut für Festkörperforschung, Forschungszentrum Jülich / Max-Planck-Institut für Kolloid- und Grenzflächenforschung, Germany]
2001
European Physical Journal E -- Soft Matter
SPRINGER-VERLAG, 175 FIFTH AVE, NEW YORK, NY 10010 USA
4
1
103-114
Yes (verified by ORBilu)
International
1292-8941
1292-895X
[en] We investigate the dynamical behavior of lamellar phases in ternary amphiphilic systems of
water, oil and amphiphile. The interaction between the amphiphilic monolayers is described by the steric interaction due to thermal fluctuations for uncharged, and by electrostatic interactions for charged systems.
The dynamics of the system is determined by the hydrodynamics of the fluid layers. The basic parameters of our model are the viscosities of the two solvents, the average thicknesses of the oil and water layers, and the bending rigidity. The model allows to consider different monolayer interactions across the oil and water layers. Relaxation rates are calculated for arbitrary wave vectors parallel and perpendicular to the average monolayer plane. We find that there is a quite complex crossover behavior from a q2 law for small parallel wave vectors to a q3 law for large q . We discuss the relevance of our result for the interpretation of dynamic light-scattering and neutron-spin-echo experiments for these systems.
http://hdl.handle.net/10993/7742
10.1007/s101890170148

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