Synthesis and characterization of copper nanoparticles stabilized with polyvinyl pyrrolidone and its performance on the conductivity and stability of polyindole

Copper nanoparticles were prepared by chemical reduction method of CuSO(4)in aqueous solution in the presence of polyvinyl pyrrolidone and cetyltrimethylammonium bromide as double capping agents without input of extra inert gases. These nanoparticles with average particle size 61 nm diameter were obtained by varying polyvinyl pyrrolidone concentration. Copper nanoparticles/polyindole composite was further fabricated via a facile in situ polymerization method. The morphology, structure and thermal stability of copper nanoparticles and copper nanoparticles/polyindole composites were studied by different techniques. The effect of copper weight percent on the conductivity of the composite was investigated, and the obtained data exhibited that only 25% weight of copper nanoparticles has the greatest effect in increasing polyindole conductivity. Furthermore, the performance of copper nanoparticles in the alteration of polyindole conductivity was investigated by SEM images.

Automated summary

Copper nanoparticles were prepared using a chemical reduction method, and copper nanoparticles/polyindole composite was fabricated using a simple in situ polymerization method. The study showed that the copper weight percent has a significant effect on the conductivity of the composite. The performance of copper nanoparticles in altering the conductivity of polyindole was investigated using SEM images.