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Vol 5, No 6 (2010)
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THEORETICAL BASES OF CHEMICAL TECHNOLOGY

3-8 69
Abstract
A number of aspects determining the role of classical and applied mathematics in natural and applied sciences, particularly, in chemistry and chemical technology is considered. Examples of finding new regularities with the use of mathematical concepts and mathematical tools are given.
9-12 65
Abstract
Influence of difficulty of separation for energy cost in distillation and rectification was studied. It was shown that energy saving depends on reflux ratio
13-16 66
Abstract
The method for calculating the energy-force parameters of rotary presses with a flat matrix, taking into account the changes of rheological properties of processed materials, which occur due to thermal heating and the use of a matrix with channels of variable section.
17-26 59
Abstract
The basic regularities and some peculiarities of multicomponent mixtures rectification in the mode of the first class fractionalization are considered. Rectification trajectories are presented for ternary zeotropic mixtures for the case when the composition of initial mixture belongs to the α=1 manifold.
27-31 79
Abstract
A vapor-liquid equilibrium model was obtained. Topological analysis of the phase diagram of complex four-component system acetone - chloroform - ethanol - water thermodynamic- was carried out, a separation flowchart was proposed, column's operation factors were obtained.

CHEMISTRY AND TECHNOLOGY OF ORGANIC SUBSTANCES

32-35 34
Abstract
This article is devoted to a method of synthesis and study of the properties of (±) - trans-2-[2-dialkylamino)ethoxy]cyclohexahols and aminoesters. It was found that the studied compounds are not toxic and have expressed antiarrhythmic properties
36-40 37
Abstract
Polymeric micro spheres with different structure of surface, narrow distribution of particles dimensions, having «nucleus-envelope» structure were synthesized. The polymeric micro spheres were applied into protection layers of emulsion photographic materials. The influence of polymeric micro spheres to sensitometric characteristics of light-sensitive photographic materials was studied. The possibility of using them as antistatic components was shown.
41-46 49
Abstract
Pyrazolopyrimidinecarbohydrazides were synthesised by hydrazinolysis of the ester group in carbethoxypyrazolopyrimidines. Functionalisation of the hydrazide group in the obtained compounds resulted in the formation of both annulated systems and of linear pyrazolopyrimidotriazepinones, pyrazolindiones, dimethylpyrazolines.

CHEMISTRY AND TECHNOLOGY OF MEDICINAL COMPOUNDS AND BIOLOGICALLY ACTIVE SUBSTANCES

47-51 38
Abstract
Two new compounds belonging to 3,5-substituted isoxazoles class were synthesized for the action mechanism investigation and the pharmacophore fragment determination of potential anti-aggregative compounds of this class. An attempt to prepare of 5-phenyl-3-(3-pyridyl)isoxazole by the phase-transfer method was described.
52-57 51
Abstract
Donor-acceptor systems based on 5-(p-aminophenyl)-10,15,20-triphenylporphyrin, purpurin 18 and 2-(2-hydroxyethyl)thio-3-methyl-1,4-naphthoquinone were synthesized to simulate the natural photoconverting systems. Their spectral properties were studied.
58-62 40
Abstract
A synthesis of polycationic amphiphiles on the basis of cholic acis with potential antimicrobial and transfection activities has been described.
63-65 35
Abstract
An approach for the determination of enantiomeric purity of chiral monomers of α-polyamide mimetics of nucleic acids is described. The test consisted of three steps: synthesis of each monomer as a racemic mixture from DL-Glu or DL-Ala, then selection of an eluent system for direct enantiomers separation on chiral phase by HPLC, and subsequent estimation of the amount of the major enantiomer obtained from L-Ala or L-Glu

CHEMISTRY AND TECHNOLOGY OF INORGANIC MATERIALS

66-69 49
Abstract
Pt(IV) chloropentaammine phosphate was studied in details using IR and UV-Vis spectroscopy, X-ray powder diffraction, differential thermal and elemental analysis. Crystal structure of the complex was solved from powder diffraction data. 195Pt and 14N NMR spectra of [Pt(NH3)5Cl]3+cation were obtained and interpreted for the first time.
70-75 37
Abstract
Тhe solid phase interaction in systems [Pt(NH3)4]Cl2 - NH4ReO4 and [Pd(NH3)4]Cl2 - NH4ReO4 in argon and on air was studied. The final products of the solid phase interaction of the specified mixtures are systems containing platinum or palladium and rhenium dioxide.
76-81 46
Abstract
A complex of composition (HGua)2[(UO2)2(di-Pic)2(SO4)2]·H2O (Gua = guanidine, di-Pic = anion of dipicolinic acid) was obtained. Single crystal X-ray diffraction showed that the structure of this compound is dimeric. Thermal decomposition, IR-spectrum and spectrum in visible range have been studied.

SYNTHESIS AND PROCESSING OF POLYMERS AND POLYMERIC COMPOSITES

82-87 44
Abstract
Was indicated that in the photoinitiated controlled polymerization of vinyl acetate in the presence of the complex Co (III) upon irradiation at wavelengths shorter than 320 nm proceeds adverse reaction radicals formation from the polymer.
88-90 42
Abstract
It was considered the influence of the content of low concentrations of carbon nanotubes on physical and mechanical properties of epoxy composite. It was showed the extreme changes in the properties in a narrow range of concentrations of modifier.
91-98 48
Abstract
In the article influence of the molecular weight of polyacrylonitrile on electrospinning process and also on the diameter and mechanical properties of the obtained fibers and fiber materials are considered. Polymers with molecular weight from 280 000 to 700 000 were investigated. Fibers with a diameter from 200 to 1100 nm were obtained.

MATHEMATICAL METHODS AND INFORMATION SYSTEMS IN CHEMICAL TECHNOLOGY

99-104 40
Abstract
Measurements of the crack's rostrum and strength in rostrum are defined. Form and measurements of constrained elasticity growing up in amorphous solid polymers in front of destruction crack at the temperatures higher then fragility temperature are defined/ Movement of the crack with zone of elasticity is investigated in a computer experiment. The processes of heat release in development of the zone of constrained elasticity are investigated.
105-107 37
Abstract
Developing and populating of data warehouse for water quality parameters based on multidimensional data model allows to collect, store and process ecological information of Dhaka river system and provides information support for decision making, such as selecting of water treatment technology, constructing of sewage treatment plant etc.
108-111 39
Abstract
The results of experimental research of the suggested method of decomposition to solve complicated multidimensional management tasks are presented. The method is based on consideration of situations at the moment of making management decisions. This method is intended for employment in systems of technological processes management of increased complexity, where the traditional management methods and classical methods of decomposition are difficult for employment.


ISSN 2410-6593 (Print)
ISSN 2686-7575 (Online)