Published in Russian Chemical Bulletin
Phase equilibria in the mixtures of polyvinyl alcohol (PVA) and chitosan were revealed. Structures of the phases were identified. The temperature and concentration dependences for the chitosan—PVA and chitosan—PVA—water systems were determined. The phase state diagram was built. It is shown that the polymer mixtures are characterized by a complex s...
Published in Russian Chemical Bulletin
Synthetic approaches were proposed to the development of hybrid organic—inorganic systems based on giant Keplerate polyoxometalates (POM Mo132), biocompatible polymers, and fluorescent molecules. A concept was formulated for the production of new systems for the prolonged release of drugs bearing a constant or temporary (protonated group) positive ...
Published in Russian Chemical Bulletin
A simple technique for introducing iron hydroxide into a highly porous polystyrene matrix is proposed. The resulting composite sorbent showed a high ability to purify air by removing hydrogen sulfide, bad-smelling, and toxic products of decay of natural remains, such as putres-cine, cadaverine, indole, and skatol, as well as organic solvents, such ...
Published in Russian Chemical Bulletin
The results of the study of the PbSe—AgSbSe2 system by measuring the emf of concentration chains with respect to PbSe in a temperature range of 300–450 K are presented. The formation in the system of a wide (37–100 mol.% AgSbSe2) region of solid solutions based on AgSbSe2 is shown. The partial thermodynamic functions of PbSe and lead in the alloys ...
Published in Russian Chemical Bulletin
New 2-amino- and 2-hydroxymethylbenzimidazoles were synthesized and used to prepare the previously unknown 1,2,3-tri- and 1,2,3,5-tetrasubstituted benzimidazolium bromides with a biphenyl-containing substituent at the imidazole nitrogen atom. In some cases, these bromides exhibit activity against targets associated with diabetes mellitus. These com...
Published in Russian Chemical Bulletin
The dependence of lead silicate glass color, applied using copper(ii) ions, on lead content in the glass, the nature of the alkali metal, and copper content was studied. It was shown that the principal contribution to the color is made by the shift of the fundamental absorption edge, which correlates with the amount of lead and copper ions. Accordi...
Published in Russian Chemical Bulletin
New high-molecular-weight contrast agents based on polyamidoamine (PAMAM) dendrimers for targeted imaging of malignant tumors characterized by overexpression of human epidermal growth factor receptor (EGFR) and human alpha-fetoprotein receptor (RECAF) were designed. Conjugates of second (G2) and third (G3) generation polyamidoamine dendrimers with ...
Published in Russian Chemical Bulletin
Rhino- and enteroviruses of the Enterovirus genus of the Picornaviridae family are the causative agents of a wide variety of diseases. To date, neither synthetic antiviral drug nor an effective vaccine exists. A leading strategy to combat these viruses is the development of compounds with capsid-inhibiting activity that block viral uncoating and/or...
Published in Russian Chemical Bulletin
Polymerization of methyl methacrylate in the presence of 2,5-di-tert-butyl-p-benzoquinone is a combination of two processes: inhibited and controlled radical polymerization. The adduct of chain propagation radicals and p-quinone formed due to the inhibited polymerization is a macroinitiator of controlled radical polymerization. The fraction of the ...
Published in 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 different composition, were synthesized. Nanocomposites formation was carried out by the method of chemical reduction of silver ions by sodium borohydride in an aqueous medium in the prese...
