1. School of Chemistry and Chemical Engineering, Nantong University, Nantong, Jiangsu 226019, P. R. China
2. Nantong Cellulose Fibers Company, Ltd., Nantong, Jiangsu 226007, P. R. China
3. Anhui Sholon New Material Technology Company, Ltd., Chuzhou, Anhui 239500, P. R. China