EPJ Web of Conferences
Volume 83, 2015QENS/WINS 2014 - 11th International Conference on Quasielastic Neutron Scattering and 6th International Workshop on Inelastic Neutron Spectrometers
|Number of page(s)||4|
|Published online||23 January 2015|
Interfaces modify the undulation spectrum of bicontinuous microemulsions
1 Jülich Centre for Neutron Science, Forschungszentrum Jülich GmbH, Lichtenbergstrasse 1, 85747 Garching, Germany
2 Jülich Centre for Neutron Science, Outstation at SNS, Forschungszentrum Jülich GmbH, Oak Ridge, USA
3 Institue for Complex Systems 1: Neutron Scattering, Forschungszentrum Jülich GmbH, 52425 Jülich, Germany
a Corresponding author: firstname.lastname@example.org
Published online: 23 January 2015
Recently, the structure and dynamics of microemulsions adjacent to a planar hydrophilic wall have been characterized using grazing incidence small angle neutron scattering (GISANS) and grazing incidence neutron spin echo (GINSES) spectroscopy, respectively. It has been found that a bicontinuous microemulsion develops a lamellar structure, and that the relaxation rate is faster for a membrane close to the interface compared to the bulk. A model developed by Seifert was employed to explain the discovered acceleration for the near-surface lamellar ordered membranes. In this contribution we present how confinement of a flat interface influences the elastic properties of surfactant membranes and discuss the effect of locally introduced flat interfaces by clay platelets. This analysis sheds light onto the undulation mode spectrum of the surfactant membrane.
© Owned by the authors, published by EDP Sciences, 2015
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