TY - JOUR
AU - Wellert, S.
AU - Karg, M.
AU - Holderer, O.
AU - Richardt, A.
AU - Hellweg, T.
TI - Temperature dependence of the surfactant film bending elasticity in a bicontinuous sugar surfactant based microemulsion: a quasielastic scattering study
JO - Physical Chemistry Chemical Physics
VL - 13
SN - 1463-9076
CY - Cambridge
PB - RSC Publ.
M1 - PreJuSER-14249
SP - 3092 - 3099
PY - 2011
N1 - Record converted from VDB: 12.11.2012
AB - 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.
KW - Carbohydrates: chemistry
KW - Elasticity
KW - Emulsions: chemistry
KW - Light
KW - Scattering, Radiation
KW - Scattering, Small Angle
KW - Surface-Active Agents: chemistry
KW - Temperature
KW - X-Ray Diffraction
KW - Carbohydrates (NLM Chemicals)
KW - Emulsions (NLM Chemicals)
KW - Surface-Active Agents (NLM Chemicals)
KW - J (WoSType)
LB - PUB:(DE-HGF)16
C6 - pmid:21152562
UR - <Go to ISI:>//WOS:000287041700012
DO - DOI:10.1039/c0cp02044c
UR - https://juser.fz-juelich.de/record/14249
ER -