1. Institute of Chemistry of Polymeric Materials; Department of Polymer Engineering and Science; Montanuniversitaet Leoben; Otto Glöckel-Strasse 2 A-8700 Leoben Austria
2. Institute of Polymer Processing; Department of Polymer Engineering and Science; Montanuniversitaet Leoben; Leoben, Otto Glöckel-Strasse 2 A-8700 Leoben Austria
3. Adolphe Merkle Institute; Polymer Chemistry and Materials; University of Fribourg; Chemins des Verdiers 4 CH -1700 Fribourg Switzerland