Regensburg 2010 – wissenschaftliches Programm
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SYMR: Symposium Nuclear Magnetic Resonance: from Applications in Condensed-Matter Physics to New Frontiers
SYMR 6: Polymer Dynamics
SYMR 6.8: Vortrag
Mittwoch, 24. März 2010, 12:00–12:15, H48
Investigation of structural heterogeneities of porous diblock copolymer membranes by single particle tracking — •Chandrashekara R. Haramagatti1, Dominique Ernst1, Felix Schacher2, Mathias Ulbricht3, Axel H. E. Müller2, and Jürgen Köhler1 — 1Experimental Physics IV, University of Bayreuth, 95440, Bayreuth, Germany — 2Macromolecular Chemistry II, University of Bayreuth, 95440, Bayreuth, Germany — 3Technical Chemistry II, University of Duisburg-Essen, 45117, Essen, Germany
We study the structural heterogeneity of porous diblock copolymer membranes employing single particle tracking. The membranes were prepared by non solvent induced phase separation (NIPS) methods. Information on the thickness and pore sizes of the membranes is known from scanning electron microscopy. Fluorescent polystyrene beads were used as fluorescent particles and the spatial position of which was monitored with sub-diffraction limited accuracy. The diffusion behavior of these particles provides information of the structural properties of the membranes.