Formation of Se0 Nanoparticles in an Aqueous Cationic Polyelectrolyte

The nanostructures formed by reduction of Se(IV) in the selenite-ascorbate redox system in an aqueous solution of supermacromolecular polycation, poly[trimethyl(methacryloyloxyethyl)ammonium] methyl sulfate, were studied by static and dynamic optical scattering and flow birefringence.     

Specific Features of Interaction of Polyacrylic and Polymethacrylic Acids with Nanoparticles of Amorphous Selenium

A study was made of formation of selenium nanoparticles in water from reduction of sodium selenite with ascorbic acid in the presence of polyacrylic and polymethacrylic acids.     

Sorption Properties of Gel Films of Bacterial Cellulose

The structure and sorption properties of gel films of bacterial cellulose were studied in its interaction with polyvinylpyrrolidone and silver nanoparticles stabilized by this compound.     

Problem of the scattering of nonstationary waves by a one-dimensional obstacle

In the work the problem is considered of the scattering of nonstationary waves by a one-dimensional obstacle: the case h=const.     

Specific features of the interaction of components in the DMSO−HBr−Pd0 system

The products of interaction of components in the donor-acceptor electron-transport (DAET) DMSO−HBr system and their complex formation with the metallic palladium surface were studied. H₂O and Me₂S (main reaction products) and CO, CS₂, C₂H₆, MeBr, H, and CH₄ (minor reaction products) were found in the gas phase by mass spectrometry (MS). The samples of metallic palladium treated with the DAET system with a components ratio corresponding to the minimum and maximum rates of metal dissolution were studied by the methods of thermoprogrammed desorption with MS detection (TPD-MS) and XPS. According to the TPD-MS data, two forms of Me₂S are present on the metal surface, whereas the XPS method detected two complexes with the molecular compositions Pd^IIBr₄S_1.26 and Pd^IIBr_3.86S_1.42. The addition of an aqueous solution of NaOH to the system results in the formation of HCOONa, which indicates that compounds (CH₂O, HCOOH) capable of reducing the palladium complexes are present in the DAET system. Published inIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 10, pp. 1740–1743, October, 2000.     

Synthesis and structure of carbonyl-containing sulfonium complexes of silver in the DMSO-HX-ketone system

The ionic silver complexes [Me₂S⁺CH₂COR]AgX₂ ^–, where X is Br or I and R is Me or Ph, in the Ag⁰(AgX)-DMSO-HX-ketone system are synthesized and characterized by the x-ray structural method.Deceased.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 8, pp. 1889–1894, August, 1989.     

Integral characteristics of MHD channel with nonconducting baffles

The electromagnetic characteristics of an MHD channel with insulated walls, two quite long electrodes, and nonconducting baffles are obtained for arbitrary magnetic field distribution law along the channel. Some specific cases of magnetic field and baffle location specification are examined in detail.Translated from Zhurnal Prikladnoi Mekhaniki Tekhnicheskoi Fiziki, Vol. 10, No. 6, pp. 30–39, November–December, 1969.