Synthesis and thermosensitive behavior of dextran graft copolymers containing poly(N-vinylcaprolactam)side chains

作     者：SHI Huangying CHEN Wenjuan ZHANG Liming 

作者机构：Institute of Polymer ScienceSchool of Chemistry and Chemical Engineering and Key Laboratory for Polymeric Composite and Functional Materials of Ministry of EducationSun Yat-Sen(Zhongshan)UniversityGuangzhou 510275China 

出 版 物：《Frontiers of Chemical Science and Engineering》 (化学科学与工程前沿（英文版）)

年 卷 期：2007年第1卷第1期

页      面：72-75页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070305[理学-高分子化学与物理] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 

基　　金：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) 

主　　题：intelligent polymers polysaccharide derivative thermosensitive behavior phase transition 

摘      要：New graft copolymers were synthesized by graft-ing N-vinylcaprolactam onto *** composition and structure were investigated by elemental analyses,infrared spectra and thermogravimetric *** optical transmit-tance measurements,it was found that the aqueous solutions of these graft copolymers showed a temperature-dependent transmittance change due to the introduction of thermosensi-tive poly(N-vinylcaprolactam)graft ***,the lower critical solution temperature(LCST)of the graft copolymer in aqueous solution was dependent on its grafting extent and *** LCST value was found to increase with the increase of the grafting extent and decrease with the increase of the copolymer *** these stimuli-response properties,such polysaccharide derivative may hold potential applications in biomedicine and biotechnology.