Abstract:
The surface shear viscosity of monolayers formed at the surface of water by adsorbed polyethyl- eneoxyde and by stearic acid is measured as a function of the surface pressure of the monolayer using a new surface viscometer. The principle of the viscometer is the measurement of the drag force on a circular disk undergoing a uniform translation at the water surface: a hydrodynamic model based on the lubrication approximation allows a calculation of the surface viscosities from the absolute measurement of the drag forces.
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Received: 26 August 1999
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Barentin, C., Muller, P., Ybert, C. et al. Shear viscosity of polymer and surfactant monolayers. Eur. Phys. J. E 2, 153–159 (2000). https://doi.org/10.1007/s101890050049
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DOI: https://doi.org/10.1007/s101890050049