1. Polymer Chemistry and Biomaterials Group, Centre of Macromolecular Chemistry, Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281 S4, 9000 Ghent, Belgium
2. Research Group of Organic Chemistry (ORGC), Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels, Belgium