1. Institute of Polymer Chemistry University of Stuttgart Pfaffenwaldring 55 70569 Stuttgart Germany
2. Daimler AG, RD/EBT Hanns-Klemm-Straße 45 71034 Böblingen Germany
3. Max Planck Institute for Solid State Research Heisenbergstraße 1 70569 Stuttgart Germany
4. German Institutes of Textile and Fiber Research (DITF) Denkendorf Körschtalstraße 26 73770 Denkendorf Germany