Synthesis, characterization and stability of chitosan and poly(methyl methacrylate) grafted carbon nanotubes
Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy
The single walled carbon nanotubes (CNTs) were effectively functionalized through grafting with chitosan (CTS) and poly(methyl methacrylate) (PMMA). Prior to grafting reaction, the carboxylated SWNCTs (SWNCTs-COOH) were obtained by treating pristine CNTs with a mixture of 3:1 (v/v) H2SO4 and HNO3, and the successive treatment of SWNCTs-COOH with SOCl 2 yielded the acylated CNTs (CNTs-COCl). The functionalized derivatives of CNTs were characterized using Fourier transform infrared spectroscopy, thermogravimetric analysis, atomic force microscopy, scanning electron microscopy and transmission electron microscopy. Both CTS and PMMA grafted CNTs showed better dispersability in acetic acid and tetrahydrofuran, in addition to higher stability in solution. © 2012 Elsevier B.V. All rights reserved.
Carson, L., Hibbert, K., Akindoju, F., Johnson, C., Stewart, M., Kelly-Brown, C., Beharie, G., Fisher, T., Stone, J., Stoddart, D., Oki, A., Neelgund, G., Regisford, G., Traisawatwong, P., Zhou, J., & Luo, Z. (2012). Synthesis, characterization and stability of chitosan and poly(methyl methacrylate) grafted carbon nanotubes. Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy, 96, 380-386. https://doi.org/10.1016/j.saa.2012.05.042