A5028736429- Carbon Nanotubes in Composites
- Material Properties and Applications
- Polymer Nanocomposites and Properties
- Advanced Theoretical and Applied Studies in Material Sciences and Geometry
- Conducting polymers and applications
- Nanotechnology research and applications
- Advanced Battery Materials and Technologies
- Nanoparticles: synthesis and applications
- Adsorption, diffusion, and thermodynamic properties of materials
- Polymer Nanocomposite Synthesis and Irradiation
- Dielectric materials and actuators
- Smart Materials for Construction
- Polymer Science and Applications
- Gas Sensing Nanomaterials and Sensors
- Ionic liquids properties and applications
- Tribology and Wear Analysis
- Thermal properties of materials
- Material Dynamics and Properties
- Polymer crystallization and properties
- Mechanical and Optical Resonators
- Ergonomics and Human Factors
- Analytical Chemistry and Sensors
- Chemistry and Chemical Engineering
- Graphene research and applications
- Advanced Energy Technologies and Civil Engineering Innovations
Petro Mohyla Black Sea National University
2020-2025
Mykolaiv V.O. Sukhomlynskyi National University
2012-2019
Mykolaiv Observatory
2016
National Academy of Sciences of Ukraine
2014
Institute of Macromolecular Chemistry
2011-2014
National Academy of Sciences
2011
We examined the amorphocrystalline structures of polyethylene glycol 400 (PEG-400) using thermogravimetric, calorimetric, X-ray phase analysis, dielectric and IR spectroscopies. The physical properties such a system are affected by presence water, due to formation hydration shell. When amorphic-crystalline PEG-400 is heated, it undergoes first low-temperature then high-temperature relaxation. demonstrate that relaxation conformational motion PEG molecule’s HO–CH2–CH2– end groups. In contrast...
Applying wide-angle X-ray scattering method, thermomechanical analysis, and differential scanning calorimetry, the structural organization properties of nanocomposites formed by chemical reduction Сu2+ cations in interpolyelectrolyte–metal complex (pectin–Cu2+–polyethyleneimine) under influence a constant magnetic electric fields have been studied. It has found that Cu2+ bulk leads to formation nanocomposite consisting interpolyelectrolyte complex, including pectin–polyethyleneimine...
The effect of carbon black (CB) nanopowder on the electrical properties polymer composite systems based epoxy resin is investigated using method impedance spectroscopy. It established that and dielectric studied significantly depend nanofiller content. found conductivity constant exhibit percolation behavior when filler’s content increases. In this case, increases exponentially, indicating formation filler electrically conductive mesh inside matrix. A small jump in reaching threshold...
This work studies phase behavior, microstructure and percolation of the poly(ethylene glycol) (PEG), filled by multiwalled carbon nanotubes (MWCNTs), organo-modified montmorillonite (OMMT), their mixtures, using differential scanning calorimentry (DSC), X-ray diffraction (XRD), electrical conductivity, analysis microscopic images. The DSC XRD data showed a noticeable decrease PEG crystallinity with increase nanofiller content. Filling MWCNTs was accompanied threshold at ≈0.1 wt%, estimated...
Impedance spectroscopy researches have been carried out for the electric and dielectric properties of systems based on polypropylene glycol carbon nanotubes. The fractal behavior those was revealed. corresponding percolation threshold 0.45% found. critical index conductivity t = 1.43 determined in framework scaling approach. processes charge transfer concerned were found to be described well by intercluster polarization model.
Thermophysical properties and the percolative behavior of systems based on polyethylene glycol carbon nanotubes formed under normal conditions action a dc electric field have been studied, by using differential scanning calorimetry impedance spectroscopy methods. It is shown that substantially affect dispersed in polymer matrix. Nanotubes are supposed to execute three basic types motion (rotation, translation, migration) action, corresponding characteristic times calculated. found...
The results of researches on the electric conductivity in percolation transition region oligoglycol/nanotubes systems are reported. It is shown that can be described framework critical theory. parameters found to change, by depending various factors, and differ from predictions statistical A relationship between indices fractal dimensionality a conducting cluster found. demonstrated application scaling function allows concentration dependences with help unique universal function.
ОСОБЛИВОСТI ПЕРКОЛЯЦIЙНОГО ПЕРЕХОДУ В НАНОКОМПОЗИТАХ НА ОСНОВI ПОЛIЕТЕРIВ ТА ВУГЛЕЦЕВИХ НАНОТРУБОК Е. А. Лисенков 1 , В. Клепко 2 Миколаївський нацiональний унiверситет iменi О. Сухомлинського вул.Нiкольська, 24, Миколаїв, 54030, Україна Iнститут хiмiї високомолекулярних сполук НАН України вул.Харкiвське шосе, 48, Київ, 02160, (Отримано 16 липня 2016 р.; в остаточному виглядi 13 вересня р.
ВПЛИВ СОЛI LiClO 4 НА ПЕРКОЛЯЦIЙНУ ПОВЕДIНКУ СИСТЕМ ОСНОВI ПОЛIПРОПIЛЕНГЛIКОЛЮ ТА КАРБОНАНОТРУБОК