| 초록 |
Polymer brushes with MWNTs as backbones were synthesized by grafting 2- HEMA from the sidewall of MWNTs via surface thiol-lactam initiated radical polymerization. FT-IR, TGA, and XPS were used to determine chemical structure and the grafted polymer quantities of the resulting product. The structure and morphology of the as-prepared hybrid nanomaterials were characterized and confirmed by TEM and SEM. TEM images of the samples provide direct evidence for the formation of a core-shell nanostructure, i.e. the MWNT coated with poly(HEMA) polymer layer and the solubility be improved. Additionally, the dispersibility of the polymer functionalized nanotubes in methanol was also demonstrated. Considering the biomedical importance of poly(HEMA) and the recent successful in vivo studies on CNTs, in future, these materials are expected to be useful in the pharmaceutical industry as novel biomaterials composites with potential applications in drug delivery. |
