1. Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus de la UAB, 08193 Bellaterra, Barcelona, Spain
2. Laboratory for Chemistry of Novel Materials, University of Mons, 7000 Mons, Belgium
3. International Solvay Institutes of Physics and Chemistry and Laboratoire de Chimie des Polymères, Faculté des Sciences, Université Libre de Bruxelles (ULB), CP 206/01, Boulevard du Triomphe, 1050, Brussels, Belgium
4. Chemistry Department “Giacomo Ciamician”, University of Bologna, Via F. Selmi 2, 40126 Bologna, Italy