1. College of Chemistry and Materials Engineering Guiyang University 103 Jianlongdong Road Nanming District Guiyang Guizhou 550005 P. R. China
2. Key Laboratory of Organofluorine Chemistry Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences Chinese Academy of Sciences Shanghai 200032 P. R. China
3. State Key Laboratory of Polyolefins and Catalysis, Shanghai Key Laboratory of Catalysis Technology for Polyolefins Shanghai Research Institute of Chemical Industry Co., Ltd. Shanghai 200062 P. R. China
4. Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources Qinghai Institute of Salt Lakes Chinese Academy of Sciences Xining 810008 P. R. China