1. University of Stuttgart; Institute of Polymer Chemistry; Pfaffenwaldring 55 D-70569 Stuttgart Germany
2. Institute of Textile Chemistry and Chemical Fibers (ITCF); Denkendorf, Körschtalstr. 26 D-73770 Denkendorf Germany
3. Corporate Sector Research and Advance Engineering; Robert-Bosch-Campus 1 D-71272 Renningen Germany