Physical-mechanical, thermochemical, thermophysical properties And morphological features Of polymer nanocomposites pp.225-280
Authors: (A.O. Tonoyan, Ch. Schiсk, S.P. Davtyan, State Engineering University of Armenia, Department of Chemistry, Armenia, and others)
Abstract: Polymeric nanocomposites with various isomeasured (SiO2, TiO2-10nm) and layered (YBa2Cu3O7-x to 50μm) additives are synthesized by various methods (emulsion, frontal polymerization, hot pressing, from polymeric solutions, and so forth). The dynamicmechanical, physic-mechanical properties and also interphase layer features of the obtained nanocomposites have been investigated. It is shown that additives of nanoparticles and layered fillers lead to the increasing of the polymeric nanocomposites’ glass transition temperature. The found effect is explained by interaction of nanoparticles with polymeric macromolecules, leading to formation of firm amorphous fraction on the surface of nanoadditives. The significant influence of nanoparticles on the crystallization kinetic for the processes carried out in the not-isothermal mode of polymerization for particular cases is shown. Using the electronic, transmission and scanning microscopy methods, morphological features of polymer-filler an interphase layer is investigated.