Title :
Supercritical fluid-assisted synthesis of carbon nanotubes-grafted biocompatible polymer composite
Author :
Nguyen, Van Hoa ; Shim, Jae-Jin
Author_Institution :
Yeungnam Univ., Gyeongsan, South Korea
Abstract :
Herein we report two composites consist of multi-wall carbon nanotubes (MWNTs) grafted with a biocompatible polymer poly(2-hydroxyethyl methacrylate) via in-situ polymerization in supercritical carbon dioxide (scCO2). MWNTs were firstly hydroxyl-modified surface with KMnO4 in the presence of a phase-transfer catalyst. Then, MWNT-OH was modified with a vinyl-group carrying silane-coupling agent, methacryloxypropyl trimethoxysilane (MPTMS). The terminal vinyl group is acted to fabricate polymer brushes on the MWNT surface. The products were characterized Fourier transform infrared spectroscopy, thermo-gravimetric analysis, X-ray diffraction, and X-ray photoelectron spectroscopy. Transmission electron microscopy (TEM) images showed that the nanotubes were well coated by the polymer shell.
Keywords :
Fourier transform spectra; X-ray diffraction; X-ray photoelectron spectra; carbon nanotubes; filled polymers; infrared spectra; polymerisation; thermal analysis; transmission electron microscopy; C; Fourier transform infrared spectroscopy; TEM; X-ray diffraction; X-ray photoelectron spectroscopy; coating; hydroxylmodified surface; in-situ polymerization; methacryloxypropyl trimethoxysilane; multiwalled carbon nanotubes-grafted biocompatible polymer composite; phase-transfer catalyst; poly(2-hydroxyethyl methacrylate); supercritical fluid-assisted synthesis; terminal vinyl group; thermo-gravimetric analysis; transmission electron microscopy; vinyl-group carrying silane-coupling agent; Lead; Materials; Proteins; Solvents;
Conference_Titel :
Nanotechnology (IEEE-NANO), 2012 12th IEEE Conference on
Conference_Location :
Birmingham
Print_ISBN :
978-1-4673-2198-3
DOI :
10.1109/NANO.2012.6322140
