1. Unité de Physique et Chimie des Hauts Polymères, Université catholique de Louvain, Louvain-la-Neuve, Belgium
2. FORTH, Institute of Electronic Structure & Laser, Heraklion, Crete, Greece
3. University of Crete, Department of Materials Science & Technology, Heraklion, Crete, Greece
4. Materials Science Center, DSM Research, Geleen, The Netherlands
5. Key Laboratory of Engineering Plastics, Joint Laboratory of Polymer Science and Materials, Institute of Chemistry, Chinese Academy of Sciences, Beijing, China