Preparation and Characterization of Poly (methyl methacrylate) -functionalized Carboxyl Multi-wall Carbon Nanotubes

摘要

An in situ polymerization process was used to prepare poly (methyl methacrylate) (PMMA) - functionalized carboxyl multi-wall carbon nanotubes using carboxylate carbon nanotubes and methyl methacrylate as reactants, and benzoyl peroxide as an initiator agent. The functionalized multi-wall carbon nanotubes were characterized using Transmission Electron Microscope (TEM), Scanning Electron Microscope (SEM), Nuclear Magnetic Resonance (1H NMR), Fourier Transform Infrared Spectroscopy (FT-IR), Thermogravimetric Analysis (TGA) and Raman. The results indicate that the PMMA chains are covalently linked with the surface of carboxylate carbon nanotubes. The surface morphology is controlled by the content of carboxylate carbon nanotubes in the reactants. The PMMA functionalized multi-wall carbon nanotubes are soluble in deuterated chloroform (CDCl3). The storage modulus and tanδmagnitude are rise as the content of CCNTs increased up to 0.3 wt.%.