1. Institute for Technical and Macromolecular Chemistry University of Hamburg Bundesstr. 45 20146 Hamburg Germany
2. Faculty of Engineering Samsun University Ballıca Kampüsü Ondokuzmayis/Samsun 55420 Turkey
3. Institute for Technical and Macromolecular Chemistry Technical University of Darmstadt Alarich‐Weiss‐Str. 8 64287 Darmstadt Germany