Abstract
Ethylene vinyl acetate (EVA) nanotube arrays were successfully prepared through wetting of anodic alumina oxide (AAO) template with polymer melt or solution, a simple physical technique. The results of scanning electron microscope (SEM) demonstrate that the wall thickness of nanotubes via solution wetting method varies from the concentrations of solutions. The EVA nanotubes, obtained from 5.0 to 7.0 wt% EVA solutions, are ca. 40 nm and ca. 60 nm, respectively. As for melt wetting method, the length of nanotubes depends on temperature and the flow properties of polymer melt. The mechanism of forming the nanotubes has been also discussed.
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