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化学学报
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化学学报 ›› 2009, Vol. 67 ›› Issue (3): 245-248. 上一篇    下一篇

研究论文

通过溴代烷烃和羧基的酯化反应制备烷基改性的多壁碳纳米管

陈小乙a,b 杨 东a 张晓鸿a 胡建华*,a 杨芃原b

  

  1. (a复旦大学高分子科学系 聚合物分子工程教育部重点实验室 先进材料实验室 上海 200433)
    (b复旦大学化学系 上海 200433)

  • 投稿日期:2008-11-27 修回日期:2008-12-24 发布日期:2009-02-14
  • 通讯作者: 胡建华

Preparation of Alkyl Functionalized Multi-walled Carbon Nanotubes Using the Esterification of Bromoalkane and Carboxyl Group

Chen, Xiaoyi a,b Yang, Dong a Zhang, Xiaohong a Hu, Jianhua *,a
Yang, Pengyuan b

  

  1. (a Key Laboratory of Molecular Engineering of Polymers (Ministry of Education) ＆ Laboratory of Advanced Materials, Department of Macromolecular Science, Fudan University, Shanghai 200433)
    (b Department of Chemistry, Fudan University, Shanghai 200433)
  • Received:2008-11-27 Revised:2008-12-24 Published:2009-02-14
  • Contact: Hu Jian-Hua

PDF

2549

被引次数

9 | 1

以1,8-二氮-二环[5,4,0]-7-十一烯(1,8-Diazabicyclo[5,4,0]undec-7-ene, DBU)作为催化剂, 通过溴代烷烃和羧基的酯化反应制备了烷基改性的碳纳米管. 分别采用1,6-二溴己烷、溴代正辛烷、溴代正十二烷和溴代正十六烷与硝酸氧化处理的碳纳米管反应, 在碳纳米管表面共价接枝了不同长度的烷基链. 实验结果表明, 烷基改性的碳纳米管能够很好地分散在二氯甲烷、氯仿等有机溶剂中; 并且随着接枝的烷基链碳数的增加, 碳纳米管在有机溶剂中的分散性也越好.

关键词: 碳纳米管, 酯化反应, 化学改性, 溴代烷烃

Utilizing 1,8-diazabicyclo[5,4,0]undec-7-ene (DBU) as catalyst, alkyl functionalized multi-walled carbon nanotubes (alkyl-MWNT) were prepared by the esterification reaction of bromoalkane and carboxyl. To graft alkyl with different chain lengths onto MWNT, bromoalkanes with different numbers of carbon atoms, e.g. 1,6-dibromohexane, 1-bromooctane, 1-bromododecane and 1-bromohexadecane, were used to react with MWNT, which was pretreated with concentrated nitric acid. The prepared alkyl-MWNT can be readily dispersed in organic solvents, such as dichloromethane and chloroform, and the dispersibility increases with the increment of the alkyl chain length.

Key words: carbon nanotube, esterification reaction, chemical functionalization, bromoalkane