Amine-Rich Polyelectrolyte Multilayer Nanoreactors for in Situ Gold Nanoparticle Synthesis

摘要: In situ synthesis of inorganic clusters in polyelectrolyte multilayers (PEMs) has typically relied on free carboxylic acid groups as the binding sites, limiting scheme to loading cationic precursor reagents. The use amine for similar purposes not been demonstrated because challenge incorporating that are paired with oppositely charged residing polyanion PEM. this paper, we specific PEM assembly conditions produce ultrathin conformal films PAH/PAA (poly(allylamine hydrochloride)/poly(acrylic acid)) and PAH/PSS (poly(styrene sulfonate)) upon suitable postassembly treatment undergo substantial molecular rearrangements generate films. These PEMs capable anionic precursors including complexes widely used gold nanoparticles. On basis our understanding mechanisms, demonstrate systematic control over size spatial...