1. Karlsruhe Institute of Technology (KIT); Institute of Organic Chemistry (IOC); Laboratory of Applied Chemistry; Straße am Forum 7Building 30.48 76131 Karlsruhe Germany
2. University Bordeaux; Laboratoire de Chimie des Polymères Organiques; UMR 5629 33607 Pessac Cedex France
3. Centre National de la Recherche Scientifique; Laboratoire de Chimie des Polymères Organiques; UMR 5629 33607 Pessac Cedex France