Bending elasticity of the surfactant monolayer in droplet microemulsions: Determination by a combination of dynamic light scattering and neutron spin-echo spectroscopy

Hellweg T, Langevin D. Bending elasticity of the surfactant monolayer in droplet microemulsions: Determination by a combination of dynamic light scattering and neutron spin-echo spectroscopy. Physical Review E. 1998;57(6):6825-6834.The bending elastic energy of a surfactant monolayer at the oil-water interface in a microemulsion system can be described by the spontaneous monolayer curvature and two elastic constants kappa and . Here we present the determination of these constants by a combination of dynamic light scattering and neutron spin-echo spectroscopy for the octane-C10E5-water microemulsion on the water continuous side of the phase diagram. Small-angle neutron scattering data are also presented and compared to the light scattering results