波谱学杂志 ›› 2007, Vol. 24 ›› Issue (4): 469-474.

• 祝贺邬学文先生八十华诞(专辑) • 上一篇    下一篇

PEO接枝多壁碳纳米管的固体NMR研究

徐敏*,陈群   

  1. 上海市功能磁共振成像重点实验室,华东师范大学 物理系,上海 200062
  • 收稿日期:2007-08-28 出版日期:2007-12-05 发布日期:2007-12-05
  • 作者简介:徐敏(1972-),女,江苏金坛人,博士,副研究员,核磁共振在化学中的应用. 电话:021-62233281,E-mail:xumin@phy.ecnu.edu.cn.*通信联系人.
  • 基金资助:

    上海市功能磁共振成像重点实验室开放课题(FMRI061211),上海市科委资助项目(05DZ22105; 07QA14018).

A Solid State NMR Study of PEO Grafted Multi-Walled Carbon Nanotubes Composites

XU Min*,CHEN Qun   

  1. Shanghai Key Laboratory of Functional Magnetic Resonance Imaging, Department of Physics, East China Normal University, Shanghai 200062, China
  • Received:2007-08-28 Online:2007-12-05 Published:2007-12-05
  • About author:*Corresponding author: Xu Min,Tel:021-62233281,E-mail:xumin@phy.ecnu.edu.cn.
  • Supported by:

    上海市功能磁共振成像重点实验室开放课题(FMRI061211),上海市科委资助项目(05DZ22105; 07QA14018).

摘要:

合成了一种聚氧乙烯(PEO)接枝多壁碳纳米管(MWNT),利用固体NMR研究了接枝在MWNT表面的PEO链的聚集态结构. 实验观察到了MWNT的NMR信号, 并发现PEO的聚集态结构为非晶,这些现象说明PEO的醚氧原子中的n电子与MWNT上π体系中的电子之间存在着一种n-π相互作用,正是这种作用使得PEO不能结晶.

关键词: 固体核磁共振, 多壁碳纳米管, 聚氧乙烯, 聚集态结构

Abstract:

An allyl poly (ethylene oxide) (PEO) grafted multi-walled carbon nanotubes (MWNT) was synthesized. The packing structure of MWNT-PEO was studied by solid state 13C NMR and TEM. The NMR results showed that the 13C NMR signals of MWNT are observable, and that the PEO chains grafted on the MWNT are amorphous. This demonstrated that there exist n-π interactions between the n orbitals of the PEO ether oxygen and the π system of MWNT.

Key words: solid state NMR, multi-walled carbon nanotubes, poly (ethylene oxide), packing structure

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