Coupled capillary wave fluctuations in thin aqueous films on an aqueous subphase.
X-ray scattering and interfacial tension measurements are used to demonstrate the formation of nanometer-thick aqueous films on aqueous bulk subphases from polymer-salt biphase mixtures. X-ray scattering determines a coupling constant that characterizes the coupled capillary wave fluctuations of the liquid-vapor and liquid-liquid interfaces of this thin film. These data also determine an effective Hamakar constant that characterizes the long-range interaction between the interfaces and parameters that characterize the short-range part of the interfacial interaction.
Li
M
M
Department of Physics, University of Illinois, 845 W. Taylor Street, Chicago, Illinois 60607, USA.
Tikhonov
A M
AM
Chaiko
D J
DJ
Schlossman
M L
ML