Fabrication and Characterization of Polystyrene/Gold Nanoparticle Composite Nanofibers

摘要

Polystyrene/gold nanoparticle (PS/AuNP) composite fibers were fabricated using an electrospinning technique.Transmission electron microscopy (TEM) showed that the diameters of the naphthalenethiol-capped gold nanoparticles (prior to incorporation into the PS fibers) ranged from 2 to 5 nm.UV-vis spectroscopy revealed the surface plasmon peaks of the gold nanoparticles centered at approximately 512 nm,indicating that nano-sized Au particles are well-dispersed in solution.This was consistent with the TEM observations.The electrospun nanofibers of PS/AuNP composites were approximately 60-3,000 nm in diameter.The surface morphology of the PS/AuNP composite and the dispersability of the Au nanoparticles inside of PS after electrospinning process were investigated by SEM and TEM.The thermal behavior of the pure PS and PS/AuNP nanocomposites and fibers were examined by DSC.