1. Department of Chemistry, Laboratory of Organic Synthesis of Functional Systems, Humboldt-Universität zu Berlin, D-12489 Berlin, Germany
2. Max Planck Institute of Colloids and Interfaces, 14424 Potsdam, Germany
3. Fraunhofer Institute for Applied Polymer Research, 14476 Potsdam, Germany
4. Institute of Macromolecular Chemistry AS CR, v.v.i., Heyrovskeho nam. 2, 162 06 Praha 6, Czech Republic
5. Max Planck Institute of Metals Research, Heisenbergstrasse 3, 70569 Stuttgart, Germany