1. Univ Lyon, INSA-Lyon, CNRS, IMP, UMR 5223, Service RMN Polymères de l’ICL, Villeurbanne F-69621, France
2. Department of Chemical Engineering, Columbia University, New York, New York 10027, United States
3. Institut für Physik, Martin-Luther-Universität Halle-Wittenberg, Halle (Saale) D-06099, Germany
4. Univ Lyon, INSA Lyon, UCBL, CNRS, MATEIS, UMR5510, Villeurbanne 69621, France