A5101499862- Carbon Nanotubes in Composites
- Graphene research and applications
- nanoparticles nucleation surface interactions
- Metallurgical and Alloy Processes
- Polymer Nanocomposite Synthesis and Irradiation
- Thermal and Kinetic Analysis
- Thermodynamic and Structural Properties of Metals and Alloys
- Advanced ceramic materials synthesis
- Magnetic and transport properties of perovskites and related materials
- Neonatal Respiratory Health Research
- Magnetic Properties and Synthesis of Ferrites
- Synthesis and Characterization of Heterocyclic Compounds
- Nonlinear Optical Materials Research
- Thermochemical Biomass Conversion Processes
- Meromorphic and Entire Functions
- Ferroelectric and Piezoelectric Materials
- Phase-change materials and chalcogenides
- Glass properties and applications
- Nanotechnology research and applications
- Metallic Glasses and Amorphous Alloys
- Polymer Synthesis and Characterization
- Advanced Differential Equations and Dynamical Systems
- X-ray Diffraction in Crystallography
- Optical properties and cooling technologies in crystalline materials
- Advanced Thermoelectric Materials and Devices
A.V. Topchiev Institute of Petrochemical Synthesis
1998-2024
Russian Academy of Sciences
2010-2024
University of Science and Technology
2022
National University of Science and Technology
2019-2020
St. Petersburg State Technological Institute
2019
Steklov Mathematical Institute
2015
Tomsk State University of Architecture and Building
1992
Abstract An effective accelerated synthesis procedure of a carbon material based on chitosan via infrared pyrolysis was developed. Infrared radiation heating allows to shorten preparation time significantly. It takes only 2 min the residence at 800 °C for complete carbonization polymer. The chemical transformations in during depended temperature were studied. formation C=C–C=N and C=C–C=C conjugated bonds low-temperature stage process demonstrated. revealed that main product 600-800...
Stem cell-based therapy is considered to be a new approach for the treatment of cerebral palsy (CP). Given potent anti-inflammatory activity and high regenerative potential M2 macrophages, these cells may an alternative source cell transplantation. To evaluate safety efficacy autologous we conducted pilot clinical trial in 21 children with severe CP. The primary outcome measure was safety, which included assessment mortality any cause, immediate adverse reactions, serious effects...
Since recently an economically efficient method including IR heating has been used for the synthesis of polymer based functional carbon nanocrystalline materials. One most widely polymers having a broadest range physicochemical properties and various applications is polyacrylonitrile (PAN). Under PAN undergoes chemical structural transformations polyconjugated system forms with increase in intensity. However, there are still no data on quantitative qualitative effects carbon, nitrogen,...
Hybrid nanocomposites based on poly(3,6-dianiline-2,5-dichloro-1,4-benzoquinone) (PDACB) in salt form and graphene oxide (GO) have been obtained for the first time, significant influence of preparation method composition structure their functional properties has demonstrated. Nanocomposites were prepared three ways: via ultrasonic mixing PDACB GO; situ oxidative polymerization 3,6-dianiline-2,5-dichloro-1,4-benzoquinone (DACB) presence by heating a suspension previously GO DMF with removal...
Developing of nanotechnology-based electronics entails developing new carbon nanocrystalline materials with predetermined physicochemical properties, e.g., obtained by synthesis polyacrylonitrile (PAN) in conditions heat treatment. We have studied the properties PAN heat-treated air temperature range 150 – 250°C and effect stabilization on kinetic parameters thermochemical material upon treatment N 2 atmosphere. It is shown that an increase a preliminary up to 200°C leads decrease activation...
An ultrafast photoinduced optical response of infrared (heat) treated polyacrylonitrile films (PAN-IR) was studied by a femtosecond pump–supercontinuum probe technique in the energy region 1.6 – 3.2 eV. Two types were used corresponding to 600°C (1st) and 700°C (2nd) heating. The samples excited pulses with duration 50 fsec ħωpump = 2.34 temporal evolution is characterized two relaxation times τ1 τ2. For 1st film type, spectral dependence time shows nonmonotonous behavior, it decreases from...
Organic semiconductors and novel carbon forms (fullerene, nanotubes, foam, graphene) promote synthesis of nanocomposites with modified properties based on thermally treated polyacrylonitrile (TPAN) that comprises curved (spherical, ring-like, tube-like) planes. Here we present a review the studies regarding TPAN-based nanocomposites. The features IR irradiation procedure synergetic effect mechanism (PAN) transformation into nanocrystalline material (CNM) have been analyzed. developed method...