Pyridine-Functionalized Single-Walled Carbon Nanotubes as Gelators for Poly(acrylic acid) Hydrogels
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- 作者：Mustafa K. Bayazit ; Lucinda S. Clarke ; Karl S. Coleman ; Nigel Clarke
- 刊名：Journal of the American Chemical Society
- 出版年：2010
- 出版时间：November 10, 2010
- 年：2010
- 卷：132
- 期：44
- 页码：15814-15819
- 全文大小：353K
- 年卷期：v.132,no.44(November 10, 2010)
- ISSN：1520-5126
文摘
Pyridine-functionalized single-walled carbon nanotubes (SWNTs) are prepared from the addition of a pyridine diazonium salt to nanotubes. The location and distribution of the functional groups is determined by atomic force microscopy using electrostatic interactions with gold nanoparticles. The pyridine-functionalized SWNTs are able to act as cross-linkers and hydrogen bond to poly(acrylic acid) to form SWNT hydrogels. The pyridine-functionalized SWNTs are further characterized using Raman, FTIR, UV/vis−NIR, and X-ray photoelectron spectroscopy and thermogravimetric analysis−mass spectrometry.