1. POLYMAT University of the Basque Country UPV/EHU Avda. Tolosa 7 20018 Donostia-San Sebastian Spain
2. Laboratoire de Chimie des Polymères Organiques (LCPO—UMR 5629) Bordeaux INP Université de Bordeaux CNRS 33607 Pessac France
3. School of Chemistry University of Birmingham Edgbaston Birmingham B15 2TT UK
4. IBM Almaden Research center 650 Harry Road San Jose CA 95120 USA