Preparation of PS-Cores/Au Nanoparticles and Polyaniline-Shells Sub-Microspheres via Layer-by-Layer Method

摘要

Functional multi-layers containing polyaniline (PANI) /gold nanoparticles have been successfully decorated on the substrate of polystyrene (PS) latex spheres via layer-by-layer method. Gold nanoparticles were assembled on the surface of PS latex spheres via their consecutive electrostatic adsorption from solution, followed by the formation of polyaniline layer to obtain the PS-cores/ conductive polymer and Au-shells multi-layer spheres. FTIR spectroscopy, scanning electron microscopy (SEM) and transmission electron microscopy (TEM) confirmed the growth of gold nanoparticles and PANI layer on the PS colloidal particles.