6533b7d0fe1ef96bd125bab3
RESEARCH PRODUCT
Temperature-dependent phase transitions in water-oil-surfactant mixtures: Experiment and theory
Reinhard StreyDoris VollmerDoris VollmerDoris VollmerJürgen VollmerJürgen VollmerJürgen Vollmersubject
Condensed Matter::Soft Condensed MatterHysteresisPhase transitionMaterials sciencePulmonary surfactantPosition (vector)Boundary (topology)ThermodynamicsBendingCurvatureModulidescription
We investigate temperature induced phase transitions in mixtures of water, oil, and a nonionic surfactant. By microcalorimetric measurements it is shown that the droplet-lamellar transition shows hysteresis so that it is strongly first order. The position of this transition and of the emulsification boundary are quantitatively described by an interfacial model which considers solely the temperature dependence of the spontaneous curvature. There is no fit parameter in the model. Remarkably, the positions of both boundaries do not depend on the bending moduli. \textcopyright{} 1996 The American Physical Society.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1996-09-01 | Physical Review E |