1. Department of Chemistry Johannes Gutenberg‐University Duesbergweg 10‐14 Mainz D‐55128 Germany
2. Max‐Planck‐Institute for Polymer Research Ackermannweg 10 Mainz D‐55128 Germany
3. BASF SE, RAP/LO Carl‐Bosch‐Straße 38 Ludwigshafen am Rhein D‐67056 Germany