1. State Key Laboratory for Modification of Chemical Fibers and Polymer Materials; College of Material Science and Engineering; Donghua University; 2999 North Renmin Road Shanghai 201620 China
2. Department of Applied Chemistry; Graduate School of Engineering; Hiroshima University; 1-4-1 Kagamiyama Higashi-Hiroshima 739-8527 Japan
3. Department of Chemistry; Stony Brook University; Stony Brook NY 11794; Center for Functional Nanomaterials; Brookhaven National Laboratory; Upton NY 11973 USA