1. Macromolecular Chemistry and Polymer Technology; TH Köln; Kaiser-Wilhelm-Allee E39 51368 Leverkusen Germany
2. Coatings, Adhesives & Specialities; Covestro Deutschland AG; Kaiser-Wilhelm-Allee 51368 Leverkusen Germany
3. Department of Physical Chemistry; Universität zu Köln; Luxemburger Straße 116 50939 Köln Germany