1. School of Materials Science and Technology
2. China University of Geosciences
3. Beijing 100083
4. China
5. Polymer Program
6. Institute of Materials Science and Department of Chemical and Biomolecular Engineering
7. University of Connecticut
8. Storrs
9. USA
10. School of Geoscience and Surveying Engineering
11. China University of Mining and Technology
12. School of Environmental Science and Engineering