1. Department of Chemistry Lomonosov Moscow State University Leninskie Gory‐1 119991 Moscow Russian Federation
2. Fraunhofer Institute for Applied Polymer Research Geiselbergstr. 69 14476 Potsdam‐Golm Germany
3. Bio‐Inspired and Smart Materials MESA+ Institute for Nanotechnology University of Twente P.O. Box 207 7500 AE Enschede The Netherlands