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1.
N. S. Shaglaeva V. V. Bayandin R. G. Sultangareev G. F. Prozorova T. I. Vakul’skaya S. S. Khutsishvili 《Russian Journal of Applied Chemistry》2013,86(4):611-614
A sulfurized polymer comprising 57.64% of chemically bound sulfur characterizing by paramagnetism with the concentration of paramagnetic centers 2 × 1019 spins g?1 and g-factor 2.0043 was resulted n the treatment of industrial polyvinyl chloride by elemental sulfur. 相似文献
2.
G. F. Prozorova I. V. Mazyar V. V. Nosyreva S. A. Korzhova T. I. Vakul’skaya B. A. Trofimov 《Russian Journal of General Chemistry》2014,84(5):892-900
Interaction of trichloroethene with sodium tetra- and pentasulfide (prepared in turn from sodium sulfide and elemental sulfur) has lead to new family of polyvinylenepolysulfides containing up to 94% of sulfur. The polymers were found highly electrochemically active when applied as active cathode for lithium batteries. 相似文献
3.
Prozorova G. F. Korzhova S. A. Pozdnyakov A. S. Emel´yanov A. I. Ermakova T. G. Dubrovina V. I. 《Russian Chemical Bulletin》2015,64(6):1437-1439
Russian Chemical Bulletin - The water-soluble nanocomposite with the uniform distribution of silver nanoparticles in polymer matrix was synthesized on the basis of poly-1-vinyl-1,2,4-triazole.... 相似文献
4.
Pozdnyakov A. S. Ivanova A. A. Emel’yanov A. I. Prozorova G. F. 《Russian Chemical Bulletin》2020,69(4):715-720
Russian Chemical Bulletin - New polymer nanocomposites containing silver nanoparticles, stabilized by hydrophilic copolymers of 1-vinyl-1,2,4-triazole with vinylsulfonic acid sodium salt of... 相似文献
5.
G. F. Prozorova I. V. Mazyar S. A. Korzhova T. G. Ermakova N. P. Kuznetsova M. V. Trenikhin Yu. G. Kryazhev B. A. Trofimov 《Doklady Chemistry》2017,473(1):53-56
New sulfur-containing copolymers based on poly(vinyl chloride) have been prepared by the nucleophilic substitution of chlorine atoms by sulfur atoms using sodium tetra- and pentasulfides. It has been shown that these copolymers can be carbonized to produce sulfur-containing carbon materials with residual chlorine content about 2 wt %. 相似文献
6.
L. A. Prozorova S. S. Sosin D. V. Efremov S. V. Petrov 《Journal of Experimental and Theoretical Physics》1997,85(5):1035-1038
The lower branch of the resonance spectrum of the quasi-one-dimensional triangular antiferromagnetic CsMnI3 has been investigated experimentally. This branch possesses a gap due to the dynamic hyperfine interaction. The temperature
dependence of the energy gap was studied in detail at several frequencies. A theoretical calculation of the corresponding
spectrum of coupled electron-nuclear spin oscillations was performed in the “hydrodynamic approximation” with an empirical
correction for thermal fluctuations of the antiferromagnetic system. The good agreement between the calculation and experimental
data makes it possible to determine the zero-point spin reduction in the antiferromagnetic.
Zh. éksp. Teor. Fiz. 112, 1893–1898 (November 1997) 相似文献
7.
T.?G.?ErmakovaEmail author N.?P.?Kuznetsova E.?A.?Sekretarev A.?S.?Pozdnyakov G.?F.?Prozorova 《Russian Chemical Bulletin》2017,66(12):2303-2307
New functional copolymers of different composition with triazole and acetate fragments in the macromolecules were synthesized by free radical copolymerization of 1-vinyl-1,2,4-triazole with vinyl acetate. The reactivity of the comonomers was studied and the monomer copolymerization constants were calculated. The structure and composition of the copolymers were determined by elemental analysis, IR and 1H NMR spectroscopy. 相似文献
8.
A.?S.?PozdnyakovEmail author A.?A.?Ivanova A.?I.?Emel’yanov S.?S.?Khutsishvili T.?I.?Vakul’skaya T.?G.?Ermakova G.?F.?Prozorova 《Russian Chemical Bulletin》2017,66(12):2308-2313
New polymer nanocomposites containing iron oxide nanoparticles stabilized with a biocompatible copolymer of 1-vinyl-1,2,4-triazole with N-vinylpyrrolidone were produced. The synthesis was conducted using the method of chemical reduction of iron ions with hydrazine hydrate in an aqueous medium in the presence of a polymer matrix. The ESR spectroscopy data showed that the core—shell type nanoparticles were obtained. The core generally consistsed of zero-valence iron coated with an oxide shell. According to the data of transmission electron microscopy, the obtained polymer nanocomposites consisted of nanoparticles of mainly spherical shape with a diameter from 1 to 14 nm. Aggregates formed from individual stabilized nanoparticles of up to 75 nm in size (in most cases) were also observed. These aggregated particles were found to self-organize and form branched chains. Nanocomposites were characterized by a different particle-size distribution, which was determined by the initial ratio of the copolymer and the precursor of iron nanoparticles. 相似文献
9.
E. V. Prozorova B. I. Reznikov 《Journal of Applied Mechanics and Technical Physics》1974,15(4):511-515
We consider the decomposition of a teflon thermal protective coating along the generatrix of a blunted solid of revolution for various Mach numbers and pressures of the incident flow. On the basis of preliminary parametric study of the equations of a laminar boundary layer with pressure gradient, calculation of the teflon decomposition parameters is reduced to solution of a system of nonlinear and transcendental equations. It is shown that the temperature distribution and decomposition rate along the generatrix of the solid of revolution have a monotonie character, and that the effective enthalpy of the material remains constant along the body. A simple approximate formula is proposed for calculation of the teflon decomposition rate. 相似文献
10.
A. I. Pankrats G. A. Petrakovskii M. A. Popov K. A. Sablina L. A. Prozorova S. S. Sosin G. Szimczak R. Szimczak M. Baran 《JETP Letters》2003,78(9):569-573
The static and resonance properties of copper metaborate CuB2O4 were experimentally studied in a magnetic field applied in the crystal tetragonal plane. The field-induced second-order phase transition to a weakly ferromagnetic state was observed in the temperature range 10–20 K. The low-field state is characterized by the absence of spontaneous moment, and it represents, presumably, a long-period helicoid. At temperatures below 2 K, two sequential first-order phase transitions were observed. They were accompanied by jumps in resonance absorption with a hysteresis upon changing field-scan direction. These transitions can be caused by the transformation of the incommensurate spin structure into the helicoidal states with periods commensurate with the lattice translation period. 相似文献