1. Center for Education and Research on Macromolecules (CERM) CESAM Research Unit University of Liege Sart-Tilman B6a, Quartier Agora 4000 Liege Belgium
2. POLYMAT University of the Basque Country UPV/EHU Avenida Tolosa 72 Donostia-San Sebastián Gipuzkoa Spain
3. IKERBASQUE Basque Foundation for Science Plaza Euskadi 5 Bilbao 48009 Spain