The translational and rotational drag on Langmuir monolayer domains

摘要

The ratio of the rotational and translational drag coefficient of a cricular liquid condensed Langmuir monolayer domain moved indifferent phases is measured. A single domain is fixed at its boundary and forced to undergo combined translational and rotational motion. It is observed, that the drag force is dominated by the viscous dissipation of the three dimensional subphase and affected by the elasticity of the surrounding monolayr phase.