Abstract
Addition of carboxyalkyl radicals to carbon nanotube (CNT) graphene surface is a non-destructive to nanotube framework method of sidewall functionalization of CNTs with the carboxylic group terminated moieties. Fluorination activates the CNT surface towards addition reactions due to transformation of the graphene aromatic structure to a more chemically reactive polyene π-system structure of fluoronanotubes. As a result, the sidewall addition reactions to fluoronanotubes are completed in a much shorter time spans than in the case of pristine CNTs. Carboxyalkyl CNT derivatives prepared by this method form stable suspensions in water and polar organic solvents. This enables their applications in biomedical research; for the preparation of water-based paints, inks, and coatings; and for processing and fabrication of nanocomposites.
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