| 초록 |
The facile fabrication of polyacrylonitrile (PAN) and poly(3,4-ethylenedioxythiophene) (PEDOT) nanofibers with a tunable diameter was achieved using a salt-assisted microemulsion polymerization. This is the first experimental demonstration for the facile preparation of polymerization with simple polymerization technique. The formation mechanism of polymer nanofibers was examined by using electron microscopes, UV/VIS and FT-IR spectroscopy, and monitoring optoelectronic property with confocal laser scanning microscope (CLSM). It was revealed that the sphere-to-cylinder micelle transformation due to the introduction of salt is the critical step for polymer nanofiber formation. The effects of properties of surfactants such as concentration, spacer length, and ionic character, monomer structure, and polymerization temperature on the structures of resulting polymer nanofibers were also investigated. PAN and PEDOT nanofibers could be used as precursor for carbon nanofiber and electronic capacitor, respectively. |
