1. State Key Laboratory of Polymer Physics and Chemistry
2. Changchun Institute of Applied Chemistry
3. Chinese Academy of Sciences
4. Changchun 130022, P. R. China
5. Department of Physics and Materials Science
6. Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials
7. Faculty of Materials Science and Engineering
8. Hubei University
9. Wuhan 430062, P. R. China
10. Shandong Weigao Group Co. Ltd.
11. Weihai 264209, P. R. China
12. City University of Hong Kong
13. Hong Kong, P. R. China