1. Department of Polymer
Science
and Engineering, University of Science and Technology Beijing, Beijing 100083, People’s Republic of
China
2. State Key Laboratory
of Chemical
Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, People’s Republic
of China
3. State Key Laboratory
of Gansu
Advanced Non-ferrous Metal Materials, Lanzhou University of Technology, Lanzhou 730050, People’s Republic
of China