1. Institute of Materials Science and Technology (IMT), Friedrich-Schiller-University Jena, Löbdergraben 32, D-07743 Jena, Germany
2. Leibniz-Institute of Polymer Research Dresden, Hohe Strasse 6, D-01069 Dresden, Germany
3. Key Laboratory of Rubber-Plastics (QUST), Ministry of Education, Qingdao University of Science and Technology, Zhengzhou Road, Qingdao 266042, China
4. Department of Physical Chemistry, University of Duisburg-Essen, Schützenbahn 70, D 45117 Essen, Germany
5. Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, and Chemical Sciences Division and Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831
6. Department of Chemistry, University of Athens, Athens, Greece