1. College of Chemical Engineering, Changchun University of Technology, Changchun, P.R. China
2. Changchun Kinwa High Technology Co. Ltd, Changchun, P.R. China
3. College of Chemistry, Northeast Normal University, Changchun, P.R. China
4. College of Chemistry, Jilin University, Changchun, P.R. China
5. State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, P.R. China