1. State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People's Republic of China
2. School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei 230026, People's Republic of China
3. Lanzhou Chemical Research Center, PetroChina Company Limited, Lanzhou 730060, People's Republic of China