Electrochemical one-step synthesis of hybrid nanocomposites Au/polymer

2018 5th Global Conference on Polymer and Composite Materials

材料科学;化学

Kolzunova, L.G.^1 ; Shchitovskaya, E.V.^1,2 ; Karpenko, M.A.^1

Russian Academy of Sciences, Far Eastern Branch, Institute of Chemistry, Vladivostok

690022, Russia^1

Far Eastern Federal University, Vladivostok

690091, Russia^2

关键词: Electropolymerisation;    Gold particles;    Hybrid nanocomposites;    Monomer compositions;    One step synthesis;    Polymeric matrices;    Small angle X ray scattering methods;    Step formation;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/369/1/012027/pdf
DOI  :  10.1088/1757-899X/369/1/012027

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Possibility of one-step formation of composites - polymeric film/Au nanoparticles by electropolymerization of monomers (acrylamide and its derivatives, formaldehyde, chitosan) at presence of a tetrachloroauric acid in the aqua medium is shown. It is confirmed by X-ray diffraction and Transmission electron microscopy that gold particles exist in nonconductive polymeric matrix as Au0. The distribution of AuNPs by size was revealed by small-angle X-ray scattering method. It was found that the radius of gold particles is affected by the adding of chitosan into the original monomer composition. The maximum radius of the AuNPs is 35 Å in the absence of chitosan, whereas after its addition, gold particles have been aggregated and their sizes increased to 140 Å. The masses of polymer films and composites based on them rise with electropolymerisation time increasing and reach maximum after 600 seconds of electrolysis. The masses of hybrid films with AuNPs are 26-40% higher than for blank polymethylolacrylamide film.