1. Experimental Polymer Physics, Institute of Physics, Martin Luther University Halle-Wittenberg, Von-Danckelmann-Platz 3, D-06120 Halle, Germany
2. Applied Functional Polymers, Macromolecular Chemistry I, University of Bayreuth, Universitätsstraße 30, D-95447 Bayreuth, Germany
3. Bavarian Polymer Institute, University of Bayreuth, Universitätsstraße 30, D-95447 Bayreuth, Germany