Formation of hybrid nanocomposites polymethylolacrylamide/silver

2018 5th Global Conference on Polymer and Composite Materials

材料科学;化学

Kolzunova, L.G.^1 ; Shchitovskaya, E.V.^1,2 ; Rodzik, I.G.^1

Russian Academy of Science, Far Eastern-Branch, Institute of Chemistry, Vladivostok, Russia^1

Far Eastern Federal University, Vladivostok, Russia^2

关键词: Chemical reduction;    Electrosynthesized polymers;    Hybrid nanocomposites;    Phosphate buffers;    Plasmon resonances;    Silver particles;    Two-step process;    X-ray phase analysis;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/369/1/012018/pdf
DOI  :  10.1088/1757-899X/369/1/012018

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

In this study, polymethylolacrylamide/silver composites have been formed by incorporating silver nanoparticles into the pre-electrosynthesized polymer film. The composites were formed in a two-step process involving the sorption of silver nitrate by a polymer matrix followed by chemical reduction of Ag-ions. The presence of crystalline silver phase in the polymer was confirmed by X-ray phase analysis (XRD), plasmon resonance and scanning electron microscopy (SEM). The small-angle X-ray scattering (SAXS) method has obtained the distribution functions of silver particles over radii. It is established that the content of silver in composites without chitosan is 10-15 times higher than with its additive. The dependences of cyclic voltammetry in pure phosphate buffer (pH 6.86) and in the presence of hydrogen peroxide were obtained. It has been shown that polymer/silver composites exhibit selectivity to hydrogen peroxide.