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Issue 22, 2000
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Dynamics in an oil-continuous droplet microemulsion as seen by quasielastic scattering techniques

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Abstract

This contribution presents the direct determination of the bending elasticity of the surfactant film in an oil-continuous microemulsion by means of neutron spin-echo spectroscopy and dynamic light scattering. The investigated system is C10E4/water dispersed in n-octane. The values obtained for the bending elastic constants are compared to results from indirect determinations based on the spinning drop method. While good agreement is found for κ, the values computed for [small kappa, Greek, macron] differ slightly when the calculation is based on polydispersities obtained from small angle neutron scattering experiments. Better agreement is reached using the polydispersities calculated from dynamic light scattering data. Furthermore, problems which seem to be specific for oil-continuous systems are addressed.

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Publication details

The article was received on 26 Jun 2000, accepted on 11 Sep 2000 and first published on 17 Oct 2000


Article type: Paper
DOI: 10.1039/B005088L
Phys. Chem. Chem. Phys., 2000,2, 5168-5174

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    Dynamics in an oil-continuous droplet microemulsion as seen by quasielastic scattering techniques

    T. Hellweg, A. Brûlet and T. Sottmann, Phys. Chem. Chem. Phys., 2000, 2, 5168
    DOI: 10.1039/B005088L

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