1. Institute for
Macromolecular Chemistry, Stefan-Meier
Strasse 31, D-79104 Freiburg, Germany
2. Freiburg Materials
Research Center, Stefan-Meier Strasse
21, D-79104 Freiburg, Germany
3. JONAS - Joint Research on Advanced Materials and Systems, Advanced Materials & Systems Research, BASF SE, Carl-Bosch-Strasse 38, 67056 Ludwigshafen, Germany