1. Department of Chemistry, University of Namur, Rue de Bruxelles 61, 5000 Namur, Belgium
2. Laboratory of Polymeric and Composite Materials (LPCM), Center of Innovation and Research in Materials and Polymers (CIRMAP), University of Mons, Place du Parc 23, 7000 Mons, Belgium
3. Elettra-Sincrotrone Trieste, S.S. 14 Km 163.5 in Area Science Park, 34149 Basovizza, Trieste, Italy
4. Univ. Rennes, CNRS, ISCR-6226, F-35000 Rennes, France
5. School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, United Kingdom