title: X-ray Study of Structural Formation and Thermomechanical Properties of Silver-Containing Polymer Nanocomposites.
abstract: The structural organization and thermomechanical properties of nanocomposites prepared from interpolyelectrolyte-metal complex (IMC) involving anionic polyelectrolyte, pectin and AgNO3, and cationic polyelectrolyte, poly(4-vinylpyridine), have been investigated using the methods of wide- and small-angle X-ray scattering and thermomechanical analysis. It is established that chemical reduction of Ag+ions in the IMC by sodium borohydride results in formation of the nanocomposite based on the "pectin-poly(4-vinylpyridine)" interpolyelectrolyte complex (IPEC) and Ag0nanoparticles as well. At the same time, the level of nanocomposites' structural heterogeneity is substantially enhancing, while effective size of the heterogeneity regions decreases. The nanocomposites IPEC-Ag0prepared are shown much bigger Tgvalue and enhanced ability for deformation than those for IMC.
authors.affiliation: Department of Polymers Modification, Institute of Macromolecular Chemistry, The National Academy of Sciences of Ukraine, 48, Kharkivske chaussee, Kyiv, 02160, Ukraine. dvaleriy@ukr.net.
authors.forename: Valeriy
authors.initials: V
authors.lastname: Demchenko
authors.affiliation: Department of Polymers Modification, Institute of Macromolecular Chemistry, The National Academy of Sciences of Ukraine, 48, Kharkivske chaussee, Kyiv, 02160, Ukraine.
authors.forename: Sergii
authors.initials: S
authors.lastname: Riabov
authors.affiliation: Department of Polymers Modification, Institute of Macromolecular Chemistry, The National Academy of Sciences of Ukraine, 48, Kharkivske chaussee, Kyiv, 02160, Ukraine.
authors.forename: Volodymyr
authors.initials: V
authors.lastname: Shtompel'
keywords: Interpolyelectrolyte complexes; Interpolyelectrolyte–metal complexes; Nanocomposite; Structure; Thermomechanical properties