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Marchenko, I. V.
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article
Formation of silver nanoparticles on shells of polyelectrolyte capsules using silver-mirror reaction
Abstract
Polymer capsules prepared by the successive adsorption of oppositely charged polyelectrolytes are modified by silver nanoparticles using the silver-mirror reaction. Substantial differences in the structure of nanocomposite polyelectrolyte shells of capsules formed on cores composed of polystyrene and CaCO3 are revealed by atomic force microscopy and transmission electron microscopy. The effect of the conditions of silver-mirror reaction (time and temperature) on the amount, size, and the distribution of silver nanoparticles over the capsule surface is studied. It is shown by small-angle X-ray scattering that, upon the formation of nanocomposite capsule shell on calcium carbonate microspherulites, the size of silver nanoparticles is limited primarily by the pore sizes of CaCO3 cores.