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Synthesis of water-soluble single-walled nanotubes by functionalization via esterification

Javad Azizian, Mahdieh Entezari, Abolghasem Shameli, Shahab Zomorodbakhsh

Water soluble compoundes were attached to single-walled carbon nanotubes (SWNTs) to form water-soluble nano dyes. functionalized SWNTs were then characterized by Fourier Transform Infrared spectroscopy (FT-IR), Raman spectroscopy, scanning electron microscopy (SEM) and UV analysis. The product can be dissolved in water and High-resolution transmission electron microscope images showed that the SWNTs were efficiently functionalized, thus the p-stacking interaction between aromatic rings and COOH of SWNTs was considered responsible for the high solubility and High transmission electron in singlewall nanotubes.