Chemical modification of carbon nanotubes with organic hydrazines

A reaction of single-wall carbon nanotubes with an organic hydrazine proceeds in an aqueous surfactant solution. Raman spectrum of the product shows the typical disorder band, indicating the occurrence of sidewall functionalization of nanotubes. Elemental analyses of the products suggest that C–N bonds are formed on the nanotube surface. The functionalized nanotubes are soluble in organic solvents up to 100 mg/L. The attached groups can be removed by heating.