1. Université de Strasbourg, CNRS, ISIS UMR 7006, 8 Allée Gaspard Monge, F-67000 Strasbourg, France
2. Brazilian Nanotechnology National Laboratory (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM), 13083-970 Campinas, São Paulo, Brazil
3. Laboratoire de Chimie des Polymères Faculté des Sciences, Université Libre de Bruxelles (ULB), CP 206/1 Boulevard du Triomphe, 1050 Bruxelles, Belgium
4. Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
5. Department of Materials Science and Engineering, Stanford University, Stanford, California 94305, United States
6. Cavendish Laboratory, Department of Physics, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, U.K.
7. Department of Physics, Norwegian University of Science and Technology (NTNU), Høgskoleringen 5, 7491 Trondheim, Norway
8. Department of Physical Chemistry, University of Vienna, Währinger Strasse 42, 1090 Vienna, Austria
9. International Solvay Institutes of Physics and Chemistry, ULB, CP
231, Boulevard du Triomphe, 1050 Brussels, Belgium