1. Research Center for Polymer Materials
2. School of Materials Science and Engineering
3. Changchun University of Science and Technology
4. Jilin 130022
5. China
6. Graduate School of Organic Materials Science
7. Yamagata University
8. Yamagata 992-8510
9. Japan
10. Division of Applied Chemistry and Frontier Chemistry Center
11. Faculty of Engineering
12. Hokkaido University
13. Sapporo