1. University of Strasbourg CNRS ISIS UMR 7006, 8 Alleé Gaspard Monge F‐67000 Strasbourg France
2. Department of Chemistry and IRIS Adlershof Humboldt‐Universität zu Berlin 12489 Berlin Germany
3. DWI–Leibniz Institute for Interactive Materials Forckenbeckstr. 50 52056 Aachen Germany
4. Institute of Technical and Macromolecular Chemistry RWTH Aachen University Worringer Weg 2 52074 Aachen Germany