1. Department of Chemistry and Applied Bioscience; ETH Zürich; Vladimir-Prelog-Weg 2 8093 Zürich Switzerland
2. Current address: Department of Chemistry; Graduate School of Engineering Science; Osaka University; 1-3 Machikaneyama-cho, Toyonaka Osaka 560-8531 Japan
3. Institute of Polymer Chemistry; University of Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
4. Current address: Institute of Technical and Macromolecular Chemistry; Aachen University; Worringerweg 1-2 52074 Aachen Germany
5. XiMo Hungary Ltd.; Záhony Str. 7 1031 Budapest Hungary