Russian Journal of Applied Chemistry, 2012, Vol. 85, No. 3, pp. 477−478.
Pleiades Publishing, Ltd., 2012.
Original Russian Text © E.A. Venediktov, E.P. Rozhkova, O.I. Koifman, 2012, published in Zhurnal Prikladnoi Khimii, 2012, Vol. 85, No. 3, pp. 506−507.
Synthesizing of Silver Nanoparticles by Thermal Implantation
of Its Ions in ED-20 Epoxy Oligomer
E. A. Venediktov, E. P. Rozhkova, and O. I. Koifman
Institute of Solution Chemistry, Russian Academy of Sciences, Ivanovo, Russia
Ivanovo State University of Chemical Engineering, Ivanovo, Russia
Received July 27, 2011
Abstract—Stable silver particles of 39 nm in diameter were synthesized by the thermal implantation of its ions
in ED-20 epoxy oligomer.
Nanoparticles of metals exhibit unusual physicochem-
ical and biological properties [1, 2] of interest for many
ﬁ elds of engineering, medicine, and chemical technology.
One of the priority directions of studies in this ﬁ eld is
preparation of nanocomposition polymeric materials .
In the present communication we report the results
of studying the synthesizing stable Ag nanoparticles by
thermal implantation of its ions from the AgNO
ED-20 epoxy oligomer, which is present in a plastic state.
In the work we used epoxy oligomer ED-20, AgNO
obtained by dissolution of metal Ag in concentrated nitric
acid, and analytical-grade 1,4-dioxane.
Synthesis of Ag particles was carried out in a glass
cylindrical reactor at 95°С. For this purpose 8 mg of
ﬁ ne-grained AgNO
crystals was placed on a reactor bot-
tom, and ED-20 was slowly poured in the reactor without
stirring. Then the resulting system was heated up to 95°С
and held at this temperature within 3 h.
The formation of Ag particles in ED-20 was monitored
by spectrophotometry on a Specord M-40 spectrophotom-
eter by the variation of absorption spectra of the solution
caused by surface plasmon resonance (SPR) on such
particles. Optical measurings were carried out in glass
cells of 1 cm width at room temperature, using ED-20 as
a comparison standard.
Sizes of Ag particle were studied by the method of
dynamic light scattering on a Zetasizer Nano ZS Malvern
instrument (a light wavelength 633 nm, temperature
30°С). For this purpose a suspension of Ag particles in
ED-20 (480 mg) was dispersed in 2 ml of 1,4-dioxane
with stirring. The measurements were carried out within
1 h after preparation of the solution, using the values of
1.422 and 1.087 cP, respectively, for the index of refrac-
tion and viscosity of the dispersant .
Fig. 1. Electron absorption spectrum of Ag particles in ED-20
epoxy oligomer. (D) optical density, (ν) wave number (cm