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supported by the National Natural Science Foundation of China(Grants No.20676155,No.30470476,No.20273086);Natural Science Foundation of Guangdong Province(Grants No.039184,No.06023103);Department of Science and Technology of Guangdong Province(Grant No.2004B33101003);Program for New Century Excellent Talents in Universities of China(NCET-04-0810).
New graft copolymers were synthesized by graft-ing N-vinylcaprolactam onto dextran.Their composition and structure were investigated by elemental analyses,infrared spectra and thermogravimetric analyses.By optical tra...