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Information × Registration Number 0220U101167, 0119U100186 , R & D reports Title Installation of mechanisms for increasing contact electrical conductivity in radiation-functionalized polymer composites with n-conjugate modifiers. popup.stage_title Head Kulish Mykola Р., Доктор фізико-математичних наук Registration Date 04-01-2020 Organization Taras Shevchenko National University of Kyiv popup.description2 Object of the study - three-dimensional and film-structured and radiation-functionalized polymer composites filled with metal particles, carbon nanotubes and additives of π-conjugated materials. The purpose of the work is to determine the structural restructuring in polymers due to their modification by π-coupled fillers and radiation functionalization and to establish the mechanisms of charge carrier transport in these composites. Research methods - morphological, structural, optical, mechanical, thermomechanical, dielectric, electrical conductivity, electron irradiation, computer simulation. The degree of crystallinity, dynamic modulus and shear at mechanical stress frequency of ~ 1 MHz, Raman spectra, photoluminescence (PL) in low density polyethylene (PEN) and polyvinyl chloride (PVH) polymer composites were investigated. ) after radiation functionalization. It is established that the introduction of the MG modifier leads to the formation of polyene structures in comozites and their rearrangements due to crosslinking and destruction, respectively. Composites based on aromatic fluorine polyamide and graphene plates were first obtained. Quantum-chemical calculations of the system '' polyamide fragment + graphene band '' were performed, boundary and near molecular orbitals (MO) and spin density distribution were calculated. An electrical conductivity mechanism based on stack interaction between composite components is proposed. A decrease in the value of percolation threshold in polymer composites with metal particles due to the high local concentration of the filler in the walls of the conductive frame of the composite with a segregated type of distribution of the filler is established.  Product Description popup.authors Alexandrov Maksym A. Honcharenko Nadiya A. Dmytrenko Olena P. Kulish Mykola Р. Kurochka Liliya I. Misyura Andriy I. Onanko Anatoliy P. Pinchuk-Rugal Tetyana M. Rozhkovsʹkyy Oleksandr M. popup.nrat_date 2020-04-02 Close