Morphology, Mechanical Properties and Antibacterial activity of Metal silicate/EVOH Nanocomposite Hybrid

초록

Recently, porous polymer nanostructures have received increasing attention in both fundamental research and practical applications for energy storage, drug delivery, contaminated waste removal, and medical imaging [1-2]. In this study, poly(3,4-ethylenedioxy thiophene)/poly(styrenesulfonate)/antimony-doped tin oxide (PEDOT/ PSS/ATO) nanocomposite particles with the size ranged from 2 to 50 m have been prepared by a solution mixing and self-assembling method in the presence of a surfactant. Two types of acicular-shaped ATO (ATO-A) with average diameter of 20 and 50 nm, and two types of spherical-shaped ATO (ATO-S) with average particle sizes of 20 and 150 nm were selected. The effects of the ATO loading on the morphology, porosity, thermal stability and electrical resistivity of the prepared particles were investigated. From the SEM, the morphology of PEDOT/PSS/ATO-S develops a porous structure of sphere composed of nano-sized PEDOT aggregates whereas PEDOT/PSS/ATO-A show cauliflower structure with many recesses in it. Since the PEDOT/PSS/ATO particles prepared by this method have good electrical conductivity, high porosity, good mechanical strength and thermal stability, they can be used for industrial applications such like functional fillers, electroconductive materials and thin membrane filters.