1. School of Materials Science and Engineering
2. Tianjin University
3. Tianjin 300072, PR China
4. State Key Laboratory of Polymer Physics and Chemistry
5. Changchun Institute of Applied Chemistry
6. Chinese Academy of Sciences
7. Changchun 130022, PR China
8. Key Laboratory of Polymer Eco-materials
9. College of Engineering and Technology
10. Northeast Forestry University
11. Harbin 150040, PR China
12. Department of Mechanical and Manufacturing Engineering
13. Aalborg University
14. Aalborg, Denmark
15. Department of Chemistry and Biosciences
16. Beijing Synchrotron Radiation Laboratory
17. Institute of High Energy Physics
18. Chinese Academy of Science
19. Beijing 100039, PR China