1. Department of Chemistry, College of Science, Zhejiang Sci-Tech University, Hangzhou310018, P. R. China
2. Emeritus Professor of Department of Chemistry and Materials Technology, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto606-8585, Japan
3. National Engineering Lab for Textile Fiber Materials and Processing Technology, School of Materials Science & Engineering, Zhejiang Sci-Tech University, Hangzhou310018, P. R. China