1. Polymer Competence Center Leoben GmbH, Roseggerstrasse 12, 8700 Leoben, Austria
2. Institute of Chemistry of Polymeric Materials, Montanuniversitaet Leoben, Otto-Glöckel-Straße 2, 8700 Leoben, Austria
3. Institute of Inorganic Chemistry, Technical University Graz, Stremayrgasse 9/IV, 8010 Graz, Austria