Dispersion of Aminoalkyl-silyl Ester or Amine Alkyl-Phosphonic Acid Side Wall Functionalized Carbon Nanotubes in Silica Using Sol-Gel Processing.
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Aminopropyltriethoxysilane and aminopropyl-phosphonic ester modified carbon nanotubes were prepared by reacting fluorinated carbon nanotubes (F-CNTs) with the 3-aminopropyltriethoxysilane or 3-aminopropyl-phosphonic acid reagents at 120 °C temperature, using pyridine as the base catalyst. These functionalized carbon nanotubes, APTES-CNTs, 1, and APPA-CNTs, 2, were characterized by transmission electron microscopy (TEM), infrared spectroscopy (IR), and thermogravimetric analysis (TGA). The homogeneous dispersion of these functionalized CNTs (0.1%) in silica were also accomplished by sol–gel processing. The TEM confirmed uniform dispersion of the functionalized CNT in silica
Research Subject Categories::NATURAL SCIENCES::Chemistry::Inorganic chemistry::Bio-inorganic chemistry
Oki, A., Adams, L., Khabashesku, V., Edigin, Y., Biney, P., & Luo, Z. (2008). Dispersion of aminoalkylsilyl ester or amine alkyl-phosphonic acid side wall functionalized carbon nanotubes in silica using sol–gel processing. Materials letters, 62(6-7), 918-922.