Conducting Polyaniline Nanoparticle Blends with Extremely Low Percolation Thresholds

摘要: Blends of HCl-doped polyaniline (PANI.HCl) nanoparticles with the following conventional polymers, poly(vinyl chloride), polystyrene, poly(methyl methacrylate), acetate), and alcohol) (PVA), were prepared by suspending preformed submicronic PANI-HCl particles in solutions matrix polymers sonicating suspension for 1.5 h. The oxidative dispersion polymerization using methyl ether) (PVME) stabilizer. contained 4.4 wt % PVME had a conductivity 4.96 S/cm. They an oblong shape (250 nm×190 nm). Sonication breaks to sizes less than 20 nm. blend films exhibit extremly low percolation threshold (f p ) every case. volume fraction at above mentioned matrices lies range 2.5×10 -4 4×10 . Transmission electron microscoopy PANI-HCl-PVA directly cast on carbon-coated TEM grids reveals connectivity compositions close f Self-assembly is evident from pictures