Light-scattering study of silver nanocomposites based on hydrophilic nitrogen-containing heterocyclic copolymers
https://doi.org/10.21285/2227-2925-2019-9-4-768-772
Abstract
A light scattering study was performed on new silver-containing polymer nanocomposites based on water-soluble copolymers of 1-vinyl-1,2,4-triazole having sodium salt of vinylsulphonic acid of various compositions. The formation of nanocomposites was carried out using chemical reduction of silver ions by sodium borohydride in a copolymer- containing aqueous medium. According to the dynamic light scattering data, a decrease in the average sizes of metal-polymer coils in water-salt solutions of nanocomposites is explained in terms of an increase in the content of sulphonate groups in the stabilising polymer matrix. The electrophoretic light scattering with phase analysis of synthesised nanocomposites reveals the zeta potential (ζ) to vary from -35.0 to -75.3 mV with an increased sulphonate unit proportion in the stabilising polymer matrix, indicating an increase in the stability of the colloidal system. The functional composition of the stabilising polymer matrix is established to provide a significant effect on the hydrodynamic dimensions of polymer nanocomposites in an aqueous medium.
The authors declare no conflict of interests regarding the publication of this article.
Keywords
polymer nanocomposites,
silver nanoparticles,
1-vinyl-1,
2,
4-triazole,
vinylsulphonic acid sodium salt
Supporting agencies: The study is supported by the Russian Foundation for Basic Research (project no. 19-03-00708). The main results are obtained using the equipment of the Baikal Analytical Centre for Collective Use of the SB RAS.
About the Author
A. A. Ivanova
A.E. Favorsky Irkutsk Institute of Chemistry SB RAS
Russian Federation
Russian Federation
Anastasiya A. Ivanova, Junior Researcher
1, Favorsky St., Irkutsk 664033
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Review
For citations:
Ivanova A.A. Light-scattering study of silver nanocomposites based on hydrophilic nitrogen-containing heterocyclic copolymers. Proceedings of Universities. Applied Chemistry and Biotechnology. 2019;9(4):768-772. https://doi.org/10.21285/2227-2925-2019-9-4-768-772
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