1. State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Renmin Street 5625, Changchun 130022, P. R. China
2. University of Science and Technology of China, Hefei 230026, P. R. China
3. ExxonMobil Asia Pacific Research & Development Co., Ltd., 1099 Zixing Road, Minhang District, Shanghai 200241, P. R. China
4. Polymer Interdisciplinary Research Centre, University of Bradford, Bradford BD7 1DP, U.K.
5. Key Laboratory of High Performance Plastics (Jilin University), Ministry of Education, National & Local Joint Engineering Laboratory for Synthesis Technology of High Performance Polymer, College of Chemistry, Jilin University, Changchun 130012, P. R. China