Registration Number
0223U001683,
0122U001973
, R & D reports
Title
Radiation functionalization of electrical conductivity and conjugation in polymer systems with nanoadditives
popup.stage_title
Head
Kulish Mykola Р., Доктор фізико-математичних наук
Registration Date
01-02-2023
Organization
Taras Shevchenko National University of Kyiv
popup.description2
The object of research is the synthesis of nanocomposites with modifiers, the establishment of interaction mechanisms to improve physical properties and use as an anti-radar coating and biomedicine.
The purpose of the work is to establish the physicochemical mechanisms of radiation functionalization of electrical conductivity and conjugation of dopant-modified polymer systems.
Research methods - structural, optical, electrical conductivity, dynamic method of ultrasonic waves, electronic irradiation, computer modeling.
The concentration dependences of the structure, electrical conductivity (EP), dynamic mechanical (DM) properties, PL, CRS, on the concentration of dopants and filler were studied, and the mechanisms of improving the electrical conductivity for the specified three-dimensional composites PA-6-MS, PA6-BWNT were established.
Quantum-chemical modeling of the structure, distribution of charges, distribution of electronic levels, shape of molecular orbitals, their localization, electronic transitions of the indicated systems was carried out. It is shown that as a result of the structural functionalization of PA-6 with a dopant, there is an increase with a transition to saturation of electrical conductivity with an increase in the MC content. Such an increase in electrical conductivity is associated with the appearance of bridges for the intra-interchain transfer of π-electrons when a stacking interaction occurs between fragments of the π-systems of PA-6 and MS. For PA-6-BWNT nanocomposites, there is a percolation dependence of electrical conductivity with a percolation threshold of 1.5% of BWNT. With addition of PA-6 BWNTs, the PL and Raman spectra are rearranged as a result of the stacking interaction between individual fragments of the structure of PA-6 and BWNTs.
Product Description
popup.authors
Busko Tatiana O.
Dmytrenko Oksana P.
Misiura Andrii I.
Naumenko Antonina P.
Onanko Anatoliy P.
Pinchuk-Rugal Tetyana M.
Cherevko Kostyantyn V.
popup.nrat_date
2023-02-01
