| 초록 |
Under ultrasound irradiation in the polymeric solutions, the polymer chains are severed statistically near the middle of the chains, resulting in polymeric radicals at the ends. And it has been known that CNTs have a radical scavenging capacity. With these backgrounds, ultrasound was used to graft severed polymer chains having radicals onto the surface of CNTs in aqueous solution. In this work, this “grafting onto” methodology was successfully explored. Multiwalled carbon nanotubes (MWCNTs) were modified with water soluble polymer, poly(vinyl alcohol, PVA). Radical scavenging effect of MWCNT enabled severed-PVA by simple ultrasonication to graft onto MWCNT. The grafting of PVA was thoroughly investigated and then the dispersive, electrical, thermal, and physical properties of modified MWCNT/PVA film were measured. |
