1. Polymer Chemistry and Biomaterials Group; Centre of Macromolecular Chemistry; Ghent University; Krijgslaan 281 S4 9000 Ghent Belgium
2. Department of Applied Physics and Photonics; Brussels Photonics; Flanders Make and Vrije Universiteit Brussel; Pleinlaan 2 1050 Elsene Belgium
3. Institute of Materials Science and Technology Technische Universität Wien; Getreidemarkt 9 1060 Vienna Austria
4. Institute of Applied Synthetic Chemistry; Technische Universität Wien; Getreidemarkt 9/163MC 1060 Vienna Austria
5. Department of Organic and Macromolecular Chemistry; NMR and Structure Analysis Unit; Ghent University; Krijgslaan 281 S4 9000 Ghent Belgium