%0 Journal Article
%A Wellert, S.
%A Karg, M.
%A Holderer, O.
%A Richardt, A.
%A Hellweg, T.
%T Temperature dependence of the surfactant film bending elasticity in a bicontinuous sugar surfactant based microemulsion: a quasielastic scattering study
%J Physical Chemistry Chemical Physics
%V 13
%@ 1463-9076
%C Cambridge
%I RSC Publ.
%M PreJuSER-14249
%P 3092 - 3099
%D 2011
%Z Record converted from VDB: 12.11.2012
%X Currently, the design of microemulsions is focussed on the formulation of environmentally compatible systems formed by non-harmful amphiphiles and oils. The use of sugar-based surfactants allows the design of microemulsions where, instead of the temperature, the addition of short- or medium-chain alcohols tunes the curvature of the amphiphilic interface. In this work, the resulting temperature stability of a sugar surfactant and rapeseed methyl ester based bicontinuous microemulsion is exploited to study the influence of temperature variations on the bending elastic constant κ. Quasi-elastic scattering of light and neutrons is used to separate long-range collective motions and local thermally excited undulations of the interface. κ in units of kT is found to be independent of temperature over a wide range.
%K Carbohydrates: chemistry
%K Elasticity
%K Emulsions: chemistry
%K Light
%K Scattering, Radiation
%K Scattering, Small Angle
%K Surface-Active Agents: chemistry
%K Temperature
%K X-Ray Diffraction
%K Carbohydrates (NLM Chemicals)
%K Emulsions (NLM Chemicals)
%K Surface-Active Agents (NLM Chemicals)
%K J (WoSType)
%F PUB:(DE-HGF)16
%9 Journal Article
%$ pmid:21152562
%U <Go to ISI:>//WOS:000287041700012
%R 10.1039/c0cp02044c
%U https://juser.fz-juelich.de/record/14249