Funct. Mater. 2020; 27 (2): 322-328.


Effect of the type of reducing agents of copper ions in interpolyelectrolyte-metal complexes on the structure and properties of copper-containing nanocomposites

V.L.Demchenko, S.V.Riabov, V.I.Shtompel, S.M.Kobylinskyi, L.A.Goncharenko

Institute of Macromolecular Chemistry, National Academy of Sciences of Ukraine, 48 Kharkivske Chaussee, 02160 Kyiv, Ukraine


The structural features, thermomechanical and electrical properties of copper-containing polymer nanocomposites formed by chemical reduction of copper ions in interpolyelectrolyte-metal complexes like pectin-Cu2+-polyethyleneimine with the use of various reducing agents (sodium borohydride, hydrazine, and ascorbic acid) are investigated. X-ray diffraction analysis reveals that the use of NaBH4 and C6H8O6 reducing agents results in formation of nanocomposites with Cu/Cu2O "core-shell" nanoparticles, while when using N2H4 as a reductant, nanocomposites with only metallic copper nanoparticles are formed. Thermo-mechanical analysis shows that the reduction process becomes more efficient with increasing in the molar ratio of (NaBH4 or C6H8O6):Cu2+ from 2 to 6, whereas, in the case of N2H4, complete reduction occurs already at a molar ratio of N2H4:Cu2+ = 2. Copper-containing nanocomposites formed by NaBH4 and N2H4 are established to exhibit semiconductor properties, whereas the initial interpolyelectrolyte complexes and nanocomposites prepared with C6H8O6 are typical dielectrics.

interpolyelectrolyte complexes, interpolyelectrolyte-metal complexes, copper-containing nanocomposite, structure, properties.

1. V.Demchenko, S.Riabov, N.Rybalchenko et al., Eur. Polym. J., 96, 326 (2017).
2. A.D.Pomogailo, A.S.Rozenberg, I.E.Uflyand, Metal Nanoparticles in Polymers, Khimiya, Moscow (2000) [in Russian].
3. L.Nicolais, Metal Polymer Nanocomposites, Wiley, New York (2005).
4. A.A.Zezin, Pol. Sci., C 58, 118 (2016).
5. R.Kaur, C.Giordano, M.Gradzielski et al., Chem. Asian J., 9, 189 (2014).
6. R.Prucek, L.Kvitek, A.Panacek et al., J. Mater. Chem., 19, 8463 (2009).
7. Y.Wang, T.Asefa, Langmuir, 26, 7469 (2010).
8. A.Bakar, V.V.De, A.A.Zezin et al., Mendeleev Commun., 22, 211 (2012).
9. P.Ruiz, J.Macanas, M.Munoz et al., Nanoscale Res. Lett., 6, 343 (2011).
10. V.Demchenko, V.Shtompel, S.Riabov, Eur. Polym. J., 75, 310 (2016).
11. D.V.Pergushov, A.A.Zezin, A.B.Zezin et al., Adv. Polym. Sci., 255, 173 (2014).

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