TITLE:
Microwave-Assisted Modification of Carbon Nanotubes with Biocompatible Polylactic Acid
AUTHORS:
Qi Zhang, Shijun Zhang, Liying Zhang
KEYWORDS:
Multi-Walled Carbon Nanotubes; Polylactic Acid; Microwave; Biocompatible
JOURNAL NAME:
Journal of Materials Science and Chemical Engineering,
Vol.2 No.1,
January
15,
2014
ABSTRACT:
Polylactic acid
(PLA) was successfully covalently grafted onto multi-walled carbon nanotubes
(MWCNT) by microwave-assisted polymerization of lactide monomers. The final
products MWCNT-g-PLA were
characterized with Fourier-transform IR (FTIR), Raman spectroscopy,
thermogravimetric analyses (TGA) and transmission electron microscopy (TEM). The
results indicated PLA chain was covalently attached to the MWCNT. The grafted
PLA was uniformly coated on the surface of MWCNT with a layer thickness of 2 ~ 6 nm. The grafted PLA content could be controlled by microwave
irradiation time and the concentrations of reactant. The product with 60.5%
grafted PLA content can be synthesized in one hour.