1. Ernst-Berl-Institute for Chemical Engineering and Macromolecular Science; Technische Universität Darmstadt; Alarich-Weiss-Str. 8 64287 Darmstadt Germany
2. Center of Excellence for Polysaccharide Research; Institute of Organic Chemistry and Macromolecular Chemistry; Friedrich Schiller University of Jena; Humboldtstr. 10 07743 Jena Germany