Formation of nanocomposites on the basis of poly-1-vinyl-1,2,4-triazole during thermolysis of silver nitrate polymer salt

By thermal treatment of a polymer complex of silver nitrate based on poly-1-vinyl-1,2,4-triazole without the use of an additional reducing agent we have synthesized new insoluble polymer nanocomposites containing zero-valent Ag-0 silver nanoparticles in the polymeric matrix. The received nanocomposites are paramagnetic with a spin concentration of about 10(18) spin g(-)(1) and have an average size of silver particles is 4-9 nm. The study of the formation of nanoparticles in the polymeric matrix was carried out by the method of electron paramagnetic resonance involving methods of synchronous thermal analysis. It was shown by monitoring the synthesis that the formation of a nanosystem is accompanied by the oxidation of the matrix and reduction of silver ions Ag+ and Ag2+. It was found that the formation of a nanocomposite was accompanied by structural changes in the polymer matrix, which can make a negligible contribution to the overall magnetism of the resulting nanocomposite.

Automated summary

New insoluble polymer nanocomposites containing zero-valent Ag-0 silver nanoparticles in the polymeric matrix were synthesized by thermal treatment of a polymer complex of silver nitrate without the use of an additional reducing agent. The nanocomposites are paramagnetic with a spin concentration of about 10(18) spin g(-1) and have an average size of 4-9 nm for silver particles. The formation of the nanosystem involves the oxidation of the matrix and reduction of silver ions Ag+ and Ag2+, and leads to structural changes in the polymer matrix.