1. Shaanxi Key Laboratory of Macromolecular Science and Technology School of Chemistry and Chemical Engineering Northwestern Polytechnical University Xi'an Shaanxi 710072 P. R. China
2. Laboratory of Organic and Macromolecular Chemistry (IOMC) and Jena Center for Soft Matter (JCSM) Friedrich Schiller University of Jena Humboldtstrasse 10 (IOMC) and Philosophenweg 7 (JCSM) 07743 Jena Germany
3. IMRCP UMR5623 Université de Toulouse 118, route de Narbonne 31062 Toulouse Cedex 9 France
4. Institut Laue-Langevin 71 Avenue des Martyrs Grenoble France
5. Institut des Molécules et Matériaux du Mans (IMMM) UMR 6283 CNRS Le Mans Université/ CNRS Avenue Olivier Messiaen 72085 Le Mans Cedex 9 France
6. LCPO UMR 5629 Université Bordeaux/ CNRS/ Ecole Nationale Supérieure de Chimie, de Biologie & de Physique 16 Avenue Pey-Berland 33607 Pessac Cedex France