1. Department of Polymer Science,
College of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio 44325-3909, United
States
2. Institute of Physics, University of Rostock, Wismarsche Strasse 43-45, 18051
Rostock, Germany
3. Institut Charles Sadron (CNRS-Université de Strasbourg), 23 Rue
du Loess, F-67034 Strasbourg, France