1. School of Chemistry and Chemical Engineering Shandong University of Technology 266 West Xincun Road Zibo 255000 P. R. China
2. State Key Laboratory of Fluorinated Functional Membrane Materials Dongyue Fluorosilicone Technology Group Zibo 256400 P. R. China
3. Key Laboratory of Organofluorine Chemistry Shanghai Institute of Organic Chemistry Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 P. R. China