1. Institute of Polymer Chemistry University of Stuttgart Pfaffenwaldring 55 70569 Stuttgart Germany
2. Institute for Theoretical Chemistry University of Stuttgart Pfaffenwaldring 55 70569 Stuttgart Germany
3. Materials Central Scientific Facility Max Plank Institute for Intelligent Systems Heisenbergstr. 3 70569 Stuttgart Germany
4. German Institutes of Textile and Fiber Research (DITF) Körschtalstr. 26 73770 Denkendorf Germany