1. Institute of Physics, University of Rostock, Wismarsche Str. 43-45, 18051
Rostock, Germany
2. Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Str.
6, 01069 Dresden, Germany
3. Center for Engineering Sciences, Martin-Luther-University Halle-Wittenberg, 06099 Halle/S.,
Germany
4. Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996,
United States
5. Chemical
Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee
37831, United States