Preparation and characterization of surface treatment on single-walled carbon nanotubes thin films by 4-azidoaniline hydrochloride

In this work, we demonstrated a surface treatment on SWCNTs by 4-azidoaniline hydrochloride under 254 nm UV light. We obtained facile sidewall amino-functionalization of SWCNTs by reactions with 4-azidoaniline and proved the covalent bond formed by FTIR result. And then we designed to graft polyaniline structure onto the sidewall of SWCNTs via polymerization in order to improve electrical property of modified-SWCNT. We measured SWCNTs/polyaniline composites sheet resistance by 4-point probe. And the result show a better average resistance about 489.2Ω/□ under our treatment. With lower resistance of CNTs/polymer composites, it can widely use in electronic equipment.