Preparation of water-soluble multi-walled carbon nanotubes by Ce(IV)-induced redox radical polymerization

作     者：Dong Yang, Xiaohong Zhang, Changchun Wang, Yuechao Tang, Junjun Li, Jianhua Hu Key Laboratory of Molecular Engineering of Polymers (Ministry of Education) and Department of Macromolecular Science, Fudan University, Shanghai 200433, China 

作者机构：Key Laboratory of Molecular Engineering of Polymers (Ministry of Education) and Department of Macromolecular Science Fudan University Shanghai 200433 China 

出 版 物：《Progress in Natural Science:Materials International》 (自然科学进展·国际材料(英文))

年 卷 期：2009年第19卷第8期

页      面：991-996页

核心收录：

学科分类：07[理学] 070205[理学-凝聚态物理] 08[工学] 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）] 0702[理学-物理学] 

基　　金：supported by China Postdoctoral Science Foundation Funded Project (No. 20080440569) NationalScience Foundation of China (Grant No. 50873029) Na-tional Science Foundation for Distinguished Young Schol-ars of China (50525310) Shanghai Scientific and Technological Innovation Project (08431902300) 

主　　题：Carbon nanotube Redox polymerization Water solubility Stimuli response 

摘      要：Poly(acrylic acid), poly(N-isopropylacrylamide) and polyacrylamide functionalized MWNTs were prepared by Ce(IV)-induced redox radical polymerization. The reaction can be conducted in aqueous media at room temperature, and the polymer graft ratio increased with the increase of monomer feed ratio. MWNTs anchored with PAA on the surface are pH sensitive and exhibit a reversible assembly–deassembly response in aqueous solution, whereas those coated with PNIPAM are thermally sensitive. All the polymer-functionalized MWNTs are highly soluble in water to give robust stable black solutions. Such water-soluble MWNTs are promising for biological and biomedical applications.