| 초록 |
Multi-walled carbon nanotubes (MWCNTs) drawattention as promising materials because of their excellent electricaland mechanical properties. Nevertheless, irregular aggregations of MWCNTs resulted from intrinsic attractive interactionbetween MWCNTs offers a challenge to their use invarious applications. Here, we present a facile method to disperseMWCNTs in a polar solution using a graft copolymer, poly(vinychloride)-graft-poly(oxyethylene methacrylate), PVC-g-POEM.The graft copolymer was synthesized via atom transfer radicalpolymerization (ATRP), as confirmed by gel permeation chromatography(GPC) and 1H NMR spectroscopy. The MWCNTswere uniformly dispersed in a polar solvent such as dimethylsuloxide(DMSO) by the help of PVC-g-POEM as a dispersant,owing to interaction between MWCNT and the graft copolymer, asrevealed by transmission electron microscopy (TEM) analysis.Upon removal of the solvent, free standing nano-composite membraneswith good homogeneity were obtained. |
