1. Key Laboratory of Carbon Fibers and Functional Polymers Ministry of Education College of Materials Science and Engineering Beijing University of Chemical Technology Beijing 100029 China
2. Institute of Advanced Materials School of Chemistry and Chemical Engineering Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research Southeast University Nanjing 211189 China
3. Advanced Materials and Liquid Crystal Institute and Chemical Physics Interdisciplinary Program Kent State University Kent Ohio 44242 USA