OICC Press International Journal of Nano Dimension 2228-5059 1 2 2024 03 01 Functionalization of Carboxylated Multi-wall Nanotubes with 1,2-phenylenediamine 10.7508/ijnd.2010.02.008 EN H. Tahermansouri Department of chemistry, Islamic Azad University, Ayatollah Amoli Branch , Amol, Iran. D. Chobfrosh Khoei Department of Science, Islamic Azad University, Shabestar Branch , Shabestar, Iran. M. Meskinfam Department of Chemistry, Faculty of Science, Lahijan Branch, Islamic Azad University , Lahijan, Iran. Journal Article 2024 03 01 In this paper, the chemical functionalization of carboxylated multi-walled carbon nanotubes (MWNT-COOH) by 1,2-phenylenediamine, have been investigated. MWNT-benzimidazole is obtained through MWNT-Amide reaction with POCl3 after 72h, which is confirmed by FT-IR, SEM, TGA, and elemental analysis. These functionalizations have been chosen due to –NH2 and NHCO active sites in MWNT-Amide for future application.