1. Max Planck Institute for Polymer Research Ackermannweg 10 55128 Mainz Germany
2. Present Address: Institute of ChemistryUniversity of Potsdam Karl-Liebknecht-Straße 24–25 14476 Potsdam Germany
3. Present Address: School of Materials Science and EngineeringSun Yat-sen University No. 135, Xingang Xi Road Guangzhou 510275 P.R. China
4. Present Address: Leibniz-Institut für Polymerforschung Hohe Str. 6 01069 Dresden Germany
5. CAS Key Laboratory of Soft Matter ChemistryHefei National Laboratory for Physical Sciences at the MicroscaleDepartment of Polymer Science and EngineeringUniversity of Science and Technology of China Jinzhai Road 96 Hefei 230026 P.R. China