1. POLYMAT, University of the Basque Country UPV/EHU, Joxe Mari Korta
Center, Avda. Tolosa
72, 20018 Donostia-San
Sebastian, Spain
2. Ikerbasque, Basque
Foundation for Science, E-48011 Bilbao, Spain
3. Laboratoire
de Chimie des Polymères Organiques (LCPO), UMR 5629-CNRS-Université de Bordeaux − Institut National Polytechnique de Bordeaux, 16 Avenue Pey Berland, 33607 Pessac, France
4. IBM Almaden Research
Center, 650 Harry Road, San Jose, California 95120, United States