An Efficient Way to Functionalize Graphene Sheets with Presynthesized Polymer via ATNRC Chemistry

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	An Efficient Way to Functionalize Graphene Sheets with Presynthesized Polymer via ATNRC Chemistry
	Deng Y(邓妍) ; Li YJ(李永军) ; Dai J(戴静) ; Lang MD(郎美东) ; Huang XY(黄晓宇)
刊名	J. Polym. Sci. Pol. Chem.
	2011
卷号	49 期号:7 页码:1582-1590
ISSN号	0887-624X
其他题名	一种通过ATNRC偶联反应实现聚合物修饰石墨烯的方法
通讯作者	李永军 ; 黄晓宇
英文摘要	Graphene nanosheets offer intriguing electronic, thermal and mechanical properties and are expected to find a variety of applications in high-performance nanocomposite materials. The great challenge of exfoliating and dispersing pristine graphite or graphene sheets in various solvents or matrices can be achieved by facilely and properly chemical functionalization of the carbon nanosheets. Here we reported an efficient way to functionalize graphene sheets with presynthesized polymer via a combination of atom transfer nitroxide radical coupling chemistry with the grafting-onto strategy, which enable us to functionalize graphene sheets with well-defined polymer synthesized via living radical polymerization. A radical scavenger species, 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO), was firstly anchored onto -COOH groups on graphene oxide (GO) to afford TEMPO-functionalized graphene sheets (GS-TEMPO), meanwhile, the GO sheets were thermally reduced. Next, GS-TEMPO reacted with Br-terminated well-defined poly(N-isopropylacrylamide) (PNIPAM) homopolymer, which was presynthesized by SET-LRP, in the presence of CuBr/N,N,N',N',N ''-pentamethyldiethylenetriamineto form PNIPAM-graphene sheets (GS-PNIPAM) nanocomposite in which the polymers were covalently linked onto the graphene via the alkoxy-amine conjunction points. The PNIPAM-modified graphene sheets are easily dispersible in organic solvents and water, and a temperature-induced phase transition was founded in the water suspension of GS-PNIPAM. (C) 2011 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 49: 1582-1590, 2011
学科主题	高分子化学
收录类别	SCI
原文出处	http://dx.doi.org/10.1002/pola.24579
语种	英语
WOS记录号	WOS:000288517400008
公开日期	2013-03-11
内容类型	期刊论文
源URL	[http://202.127.28.38/handle/331003/24435]
专题	上海有机化学研究所_高分子材料研究室
推荐引用方式 GB/T 7714	Deng Y,Li YJ,Dai J,et al. An Efficient Way to Functionalize Graphene Sheets with Presynthesized Polymer via ATNRC Chemistry[J]. J. Polym. Sci. Pol. Chem.,2011,49(7):1582-1590.
APA	邓妍,李永军,戴静,郎美东,&黄晓宇.(2011).An Efficient Way to Functionalize Graphene Sheets with Presynthesized Polymer via ATNRC Chemistry.J. Polym. Sci. Pol. Chem.,49(7),1582-1590.
MLA	邓妍,et al."An Efficient Way to Functionalize Graphene Sheets with Presynthesized Polymer via ATNRC Chemistry".J. Polym. Sci. Pol. Chem. 49.7(2011):1582-1590.