Dresden 2011 – wissenschaftliches Programm

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 19: Poster: Interfaces and Thin Films

CPP 19.19: Poster

Dienstag, 15. März 2011, 18:00–20:00, P2

Surface shear viscosity measurements in quasi 2-d systems — •Uli Langer and Thomas M. Fischer — EP V, Uni Bayreuth, Germany

Measuring the surface shear viscosity of monolayers is a very sensitive way of observing changes in the ordering of the particles the monolayers consits of. Due to the high sensitivity of this method one even gets reliable values for the surface shear viscosity of monolayers in the liquid expanded phase. In contrary to passive microrheology where sensitivity is proportional to the time used for measuring, the measurements with active microrheology take less than a minute.