1. Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
2. Ernst-Berl
Institute for Chemical Engineering and Macromolecular Science, Darmstadt University of Technology, Petersenstrasse 22, 64287 Darmstadt, Germany
3. Max Planck Institute for Iron Research GmbH, Max-Planck-Strasse 1, 40237 Düsseldorf, Germany