Pyridine-Functionalized Single-Walled Carbon Nanotubes as Gelators for Poly(acrylic acid) Hydrogels

Bayazit, MK; Clarke, LS; Coleman, KS; Clarke, N

Abstract

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.

Citation

Bayazit, M., Clarke, L., Coleman, K., & Clarke, N. (2010). Pyridine-Functionalized Single-Walled Carbon Nanotubes as Gelators for Poly(acrylic acid) Hydrogels. Journal of the American Chemical Society, 132(44), 15814-15819. https://doi.org/10.1021/ja1076662

• Journal Article Type: Article
• Publication Date: 2010
• Deposit Date: Feb 1, 2012
• Journal: Journal of the American Chemical Society
• Print ISSN: 0002-7863
• Electronic ISSN: 1520-5126
• Publisher: American Chemical Society
• Volume: 132
• Issue: 44
• Pages: 15814-15819
• DOI: https://doi.org/10.1021/ja1076662
• Keywords: sidewall functionalization diazonium dispersion reactivity chemistry mechanism solvent route salts water