RUSSIAN

INSTITUTE OF PHYSICAL ORGANIC CHEMISTRY
OF THE NATIONAL ACADEMY OF SCIENCES OF BELARUS

 

Department of High-Molecular Compaunds

Laboratory of Ion Exchange and Sorption

Laboratory of Membrane Processes

Laboratory of Organic Electrolytes

Group of Mechano-chemistry of High-Molecular Compounds

Group of Synthesis and Study of Adhesion Polymers

Department of Organic Chemistry

Laboratory of Organoelement Compounds

Laboratory of Organic Catalysis

Research Group of Synthesis and Investigation of Organic Peroxides

Department of Medicinal Substances

Laboratory of Heterogeneous Catalysis

Laboratory of Light Polarizing Films

Laboratory of Spectroscopy and Electronic Microscopy

Laboratory of Radio and Mass Spectroscopy

Laboratory of Physicochemical Metods

Information-Patent Department

Group of Computer Facilities

 

 

 

DEPARTMENT OF HIGH-MOLECULAR COMPOUNDS
Head - Dr.Sci. (Chemistry) Academician, Professor Vladimir Soldatov

Laboratory of Ion Exchange and Sorption
Head - Dr.Sci. (Chemistry) Academician, Professor Vladimir Soldatov

At the Laboratory research works are being carried out by three groups concerned with synthesis and studying properties of ion exchange fibers; purification of air and water; computer quantum-chemical simulation of ion exchange systems.
The main scientific directions of the group dealing with synthesis and studying properties of ion exchange fibers (Head, Cand.Sci.(Chem.) A.Shunkevich) are development of methods and technologies of new ion exchange fibers and studies of their physicochemical, mechanical and sorption properties.
The methods of preparing ion exchange fibers FIBAN® containing different functional groups: sulfoacidic, strong-basic, carboxylic, weak-basic, aminocarboxylic, helate iminodiacetatic, mixed strong-, weak-basic, mixed potassium-cobalt ferrocianide - impregnated have been developed.
Ion exchange fibers found application in air and water purification from ionizable impurities (acids, bases, salts, radionuclides etc.).
The main scientific direction of the group dealing with air and water purification (Head, Cand.Sci.(Chem.) I.S.Elinson) is the development of methods and facilities for air and water purification, with use of ion exchange fibrous materials as well as the study of their physicochemical and sorption properties (ECOFIL DECO).
Frame ion exchange filters (FIF) for air purification from toxic gases of acid and basic nature with a capacity from 0.5 to 25 th. m3/h are designed. Filters have found use at many tens of industrial enterprises of Belarus, Russia, and the Ukraine.
A light-weight facility for respiratory organ protection from acid gases and aerosols (HF, SiF4, H2SO4) with simultaneous protection from dust, smoke and mist, namely, a respirator "Akatsiya GP-V"-type is designed.
Systematic investigations of sorption of heavy metal ions by fibrous ion exchangers from aqueous media have permitted the development and commercial production of the first in Belarus individual free-flow filter for purification of potable water "Krynichka".
The subjects of research work of the group of computer quantum-chemical simulation (Head, Cand.Sci.(Chem.) V.M.Zelenkovsky) are theoretical investigations and computer simulation of physicochemical properties of ion exchangers and ion exchange processes in complex polyatomic systems.
The methods developed allow evaluation of the effect of space structure of polymer networks on the properties of ion exchangers. According to these methods, a network is represented as a set of a small number of elementary fragments.

 

Laboratory of Membrane Processes
Dr.Sci. (Chemistry) Alexandr Bildyukevich

The Laboratory was organized in 1987 on the base of the Institute and the Research Institute of Physicochemical Problems at the Belarusian State University.
The main scientific directions are:
- development of synthesis methods and manufacturing processes of ultra- and microfiltration membranes MIFIL® based on a wide range of polymers;
- development of membrane separation processes of liquid mixtures; development of large-scale integrated assembles for water treatment and high-quality drinking water preparation;
- hardware designing for water purification processes.
Production of a base variety of membranes and membrane elements have been brought to a commercial level:
ultrafiltration membranes from cellulose and its derivatives, polysulfone, aromatic polyamides, acrylonitrile copolymers; microfiltration aliphatic polyamide-based membranes; modified membranes with increased rejection to mean-size molecules; ultra- and microfiltration installations based on flat-frame, cassette, and hollow fibre membrane elements; domestic filters for tap water purification. Membrane separation processes in food, pharmaceutical, manufacturing, waste water purification and a number of other fields were developed and introduced into service at dozens of commercial plants of Belarus, Russia and the Ukraine.
The Republican Scientific and Technical Program "Membranes" has been successfully completed. Studies on development of new membrane elements with improved technical characteristics and multi-purpose filters for water purification are in progress.

Laboratory of Organic Electrolytes
Head - Cand.Sci. Vasilii Matusevich

The Laboratory was organized on the base of the Research Group of Ion Exchange Soils at the Institute and a group of researchers at the Institute of Chemistry of New Materials in 1999. Its main scientific directions are the development of preparation methods, application and investigation of physicochemical properties of new polyelectrolytes and organic electrolytes, ion exchange substrates used for plant cultivation, new technologues air and water purification.
Artificial ion exchange substrates BIONA® for plant cultivation and multiplication under man-made conditions were developed from the studies of ion exchange equilibria of biogenic ions on different natural and synthetic ion exchangers. Granular and fibrous substrates were prepared and permitted. 1-3 kg and more of a green biomass of plants per 1 kg of substrate to be obtained without additional fertilizing, which corresponds to a yield capacity of 100-500 kg per 1 m2 of a crop area.
The pilot-production technology of granular ion exchange substrates were worked out.
In cooperation with the Belarusian Research Institute of Potato Growing, a new substate BIONA-based technology for fast potato reproduction is developed and permits the rooting of improved potato grafts in vivo. In collaboration with the Institute of Medicobiological Problems at the Ministry of Health of Russia, new fibrous substrate nutrients are being developed for the Space greenhouse "Vitacycle".
Joint studies on use of small additions of ion exchange substrates BIONA® for recultivation of depleted and barren soils are in progress in association with the Lublin Agricultural Academy and the Technical University of Lublin. The Laboratory has at its disposal a large-scale pilot plant for ion exchange substrate preparation.

Self-Financing Group of Mechanochemistry of High-
Molecular Compounds

Head - Sergei Azizbekyan

The Group was founded in 1994 to conduct studies on mechanochemistry of high-molecular compounds.
Technologies for mechanochemical activation of carboxyl methylcellulose solutions are developed, the relevant commercial equipment is manufactured and implemented, allowing a reagent cosumption reduction by 20%.
The mechanism of the mechanochemical gluey ability of the solutions of natural polysaccharides (starches) is clarified and the production equipment is manufactured. The manufacturing process is implemented at three concentrating mills of the Production Association (PA) "Belaruskalij" (the town of Soligorsk).
A large complex of studies is made of potato (pulp) reprocessing waste reclamation by mechanomodification in high-speed desintegrators that provide complete release and simultaneous glueying of pulp-bound starch grains. The technology, equipment, design documentation are developed. The plant for wasteless production of a reagent-depressor from local raw materials is put in service.

Group of Synthesis and Study of Adhesion Polymers
Head - Cand.Sci. (Chemistry) Alexandr Valendo

The main scientific direction is concerned with investigating catalytic polymerization of olefins, synthesis and studies of polymers with high adhesion properties, and those with improved thermal stability.
High-active catalytic systems for polymerizing α-olefins are developed and the mechanism of modifying action of additional organometallic components in complex organometallic catalysts is studied. The synthesis of ultrahigh molecular polyethylene (UHMPE) with a high yield and a molecular mass from 1x106 to 20x106 Dalton is elaborated. Composite UHMPE materials with enhanced stability, electrical and thermal conductivity, antifriction properties are prepared. They can find use in different industries that manufacture friction unit parts, anticorrosion and antifriction coatings, face sealing parts, members that operate in chemical aggressive media as well as in radio engineering, etc.
High-adhesion copolymers of styrene and diene hydrocarbons are synthesized. Based on them, glue and varnish compositions are prepared for shoe and radio electronics industries.
Methods for synthesizing film-forming polyimides and polyimide materials are developed for interlayer insulation and passivation in production of large-scale integrated circuits.

 

DEPARTMENT OF ORGANIC CHEMISTRY
Head - Dr.Sci. (Chemistry), Corresponding Member, Vladimir Potkin

Laboratory of Organoelement Compounds
Head - Dr.Sci. (Chemistry), Corresponding Member, Vladimir Potkin

The Laboratory has been organized by Corresponding Member of BSSR Academy of Sciences, Professor Dr. Yu.A.Ol'dekop on the basis of former Laboratory of organic chemistry of the Institute of Chemistry.
The main research fields are synthesis of organometallic compounds (OM) and polyfunctional organohalogen compounds.
A new reaction: initiated decarboxylation of mercury dicylates, leading to organomercury acylates, unknown thus far, has been discovered and studied in detail. This reaction has been found to proceed by homolytical chain mechanism, and convenient preparative methods for organomercurials have been developed on its basis. A method of synthesis of arylmercury salts has been proposed, based on reaction of aroyl peroxides with mercury(I) acylates.
A general way of preparation of transition metal π-complexes by electrolysis of CH-acids (cyclopentadienes, fulvenes, indenes, β-diketones, carborane derivatives) has been developed using sacrificial anodes of the respective metals. Efficient preparative methods have been proposed for metallocene and metallocarborane derivatives of iron, cobalt and nickel, including the respective heteroligand analogues, as well as β-diketonate complexes of a large number of transition metals. Organometallics of formerly unknown types have been synthesized and characterized. Some of these manifested properties which make them interesting as potential catalysts, auxiliary substances for microelectronics, structure-forming compositions for petroleum products and other organic liquids.
A new method of synthesis of various polychlorobutenes and -butanes has been developed. New highly reactive and selective reagents - nitro-substituted halobutadienes - have been introduced into organic synthetic practice. (V. Potkin, R. Kaberdin). On the basis of these compounds, a number of difficult accessible polyfuntional compounds of various classes have been synthesized. New free-radical rearrangements involving 1.2-migrations of chlorine atom have been discovered. Nucleophilic C=C bond cleavage has been established to proceed under the action of alcohols. A new reaction of nitro compounds has been discovered, which can be a convenient route to isothiazole ring formation.
In the course of these studies, promissing substances with pesticide, anti-microbial and anti-tumor activities have been synthesized.

Laboratory of Organic Catalysis
Head - Dr.Sci. (Chemistry) Nikolai Kozlov

The Laboratory has been created in 1935 by Professor N.Kozlov. The main field of activity: development of synthetic methods for alicyclic and heteroaromatic nitrogen-containing derivatives of terpenes and phenanthrenes, as well as investigation of their chemical transformations.
Transformations of terpenes under conditions of acid catalysis have been studied. Methodology of a profound structural modification of compounds of natural origin has been developed, allowing to perform syntheses of novel nitrogen-containing substances, including prostaglandine synthons.
On the basis of catalytic azomethine condensation with CH-acids (the Kozlov synthesis), new efficient preparative methods for fused nitrogen-containing heterocycles of benzo[a]phenanthridine, benzo[f]quinoline, indeno[c]- and indeno[f]quinoline, 4.7-phenanthroline series containing active pharmacophore groups have been developed. An alternative synthetic approach to anellated aza- and diaza phenanthrene derivatives: a three-component condensation of cyclic mono- or β-diketones with synthetic precursors of azomethines: 2-naphtyl- or 2-quinolylamine, and aromatic (hetroaromatic) aldehydes has been proposed. The pathway of a three-component condensation has been established as a function of structure of carbonyl compounds and the reaction conditions. Syntheses of a large number of formerly unknown biologically active compounds of azaphenanthrene series with expected anti-bacterial, anti-ferment, antiviral or hypotensive properites have been carried out.
A number of quaternary ammonium bases has been obtained, and their antistatic properties studied.

Research Group of Synthesis
and Investigation of Organic Peroxides

Head - Cand.Sci. (Chemistry) Konstantin Moiseichuk

The main research field is development of synthetic methods for organic and organoelement peroxides, investigation of their thermal stability and useful properties, as well as synthesis of amphiphilic compounds.
Non-traditional synthetic pathways have been developed for synthesis of organic and organoelement peroxides, based on reactivity of C≡CH group of peroxy alkynes. A metallation reaction, formerly unknown for peroxy alkynes, has been discovered. This allows to perform syntheses of mercury, silver and lithium peroxyacetylenides which are new reagents in syntheses of difficult accessible functionally substituted peroxides. On the basis of these reagents, preparative methods for new-type peroxy alkynes have been developed: peroxy group containing alkyne acids, ketones, aldehydes, alcohols, alkynyl phosphonates, organosilicon compounds, as well as long-chain peroxides, carborane- and ferocene-containing peroxides.
A convenient preparative method for diperoxy ketals, diperoxy acetals, peroxy esters has been developed using trimethylchlorosilane as reagent.
Various ways of obtaining hydroxy- and carboxy-substituted long-chain diacetylenic compounds have been proposed, which are interesting as amphiphilic compounds.
A number of peroxides are efficient cross-linked agents for polyethylene; they promote polyolefine adhesion to copper, aluminium, steel, nickel.
Commercial manufacture of hydroperite is performed. Solution composition based on organosilcon compounds has been developed, which is used for planarization procedure in the course of integral scheme production.

 

DEPARTMENT OF MEDICINAL SUBSTANCES
Head - Dr.Sci. (Chemistry) Zoya Kuvaeva

The Department was organized on the basis of the Laboratory of Ion Exchange Extraction in 1999.
The Department comprises three research groups: microbiology (Head, Cand.Sci. (Engng) N.Yakimovich), extraction (Head, Cand.Sci.(Chem.) A.Mikulich), organic synthesis (Head, Cand.Sci. (Chem.) D.Lopatik) and the Laboratory of Aminoacid Pharmacology (Head, Dr.Sci. (Medicine) B.Dubovik).
The principal scientific directions are:
· selection of commercial cultures of microorganisms producing aminoacids, vitamins, and enzymes. Development of biosynthesis of biologically active substances;
· study of interaction of ion exchange extractants with biologically active substances to develop technological processes of their separation from microbiological synthesis media;
· synthesis and study of the properties of organic compounds used as medicinal preparations;
· study of pharmacological activity of aminoacids, their derivatives and compositions as potential medicinal drugs.
At the Department the following most important investigations have been conducted:
· a new stock-strain of a producer of L-leucine with enhanced activity is developed;
compositions of nutrient media necessary for production of indispensable aminoacids are prepared and optimized;
· a complex of investigations in the field of ion exchange extraction is carried out and has allowed the basic regularities of interion and intermolecule interactions in liquid sulfocationites (sulfoextractants) to be found and those of extraction processes of ionized substances of different nature (inorganic, simple organic and dipole ions) to be established;
· separating processes of aminoacids from microbiological synthesis media are developed.
The research fundamentals of these investigations are implemented at the Grodno Factory of Medical Preparations. The nomenclature of this factory includes high-purified aminoacids of medical purpose and medicinal preparations of different therapy action that are based on compositions of aminoacids and their derivatives.
Original ways of syntheses of a number of aminoacids, their derivatives as well as other organic compounds with pharmacological activity are developed.
New production processes for preparations of different therapy action are created and implemented. These are: Asparcam (preparation for cardiovascular disease treatment), Taurine (radioprotector preparation), Leucine (immunocorrector), Teturame and Glian (antialcohol preparations). Antitumor, antianemia, hepatoprotector, antinarcotic preparations are in the development stage.

Laboratory of Heterogeneous Catalysis
Head - Dr.Sci. (Engineering), Professor Yurii Yegiazarov

The Laboratory was organized on the basis of the Laboratory of Petroleum Chemistry in 1996.
The principal scientific direction is the synthesis of heterogeneous-catalytic systems for oxidation-reduction and acid-base reactions as well as the investigation of the nature and regularities of active phase formation, kinetics and mechanisms of occurring reactions.
Catalytic systems for production of reactive monomers and high-octane components of motor fuel, gas sulphur (Claus' process), cyclohexanol dehydration, purification of gas effluents of commercial plants, and road transport are developed.
Methods of modifying aluminium and titanium oxides, zeolites and zeolite-containing systems are worked out; the regularities of metal-carrier interaction depending on the metal nature and physicochemical properties of a carrier are established.
Investigations on the synthesis of catalytic systems based on organic polymeric fibrous ion exchangers for ecological processes are being carried out.
A titanium-oxide catalyst of the Claus process (Joint Company "Mozyr Petroleum Refining Plant"), copper-titanium calcium and nickel-chromium palladium catalysts for exhaust-gas neutralization, a copper-zinc catalyst for cyclohexanol dehydration (Grodno PA "Azot"), a palladium-titanium-calcium catalyst for exhaust-gas detoxication (Novopoltsk PA "Polimir"), a procedure for petrol-solvent purification from olefins (Novopoltsk PA "Naftan") have found use in industry.

Laboratory of Light Polarizing Films
(double subordination)
Head - Dr.Sci.(Chemistry), Corresponding Member, Professor Vladimir Agabekov

The Laboratory was organized in 1998 as the joint laboratory of the Institute of Physical Organic Chemistry of the NASB and the Institute of Chemistry of New Materials.
The main scientific directions are: development of materials and manufacturing processes of different type film polarizers used in liquid-crystal (LC) information displays for UV, IR and visible spectra.
A manufacturing technology of light polarizing films for LC information displays is elaborated. Pilot-production of film transmission and reflection-type polarizers for LC indicators are made.
Developed are:
- a composition for manufacturing polyvinylalcohol-based films and method of adding dichroic dyes to them;
- a composition for manufacturing reflecting and semitranslucent layers, coating to adhere a polarizer to an LC indicator surface;
- a manufacturing process of film polyiodide- and polyvinylalcohol-based polarizers of transmission and reflection type.
The Laboratory has a pilot-production line of film polarizers.
Investigations on thermostable polarizers containing organic dichroic dyes and production technologies of a film semitranslucent-type polarizer are in progress.

Laboratory of Spectroscopy and Electronic Microscopy
Head - Cand.Sci. (Chemistry) Evgenii Skakovskii

The Laboratory was formed in 1996. It meets the needs of the Institute for NMR investigations, optical spectroscopy, and electronic microscopy.
The principal scientific directions are:
- investigation of temperature influence on photochemical reactions; studies of magnetic and spin effects (chemical and optical polarization of nuclei; influence of magnetic fields on the course of chemical reactions; magnetic isotope effect);
- analysis of the influence of weak ultrasonic oscillations on chemical reactions; investigation of structure of organic and inorganic compounds in UV, visible and IR regions;
- study of the microstructure of different-class polymeric objects.
The mechanisms and the kinetic parameters of photo- and thermodecomposition reactions of different-class organic compounds are studied. For the first time the optical polarization of protons of water and dissolved in it substances under irradiation of heterogeneous systems due to light absorbed by polymeric current-conducting films is observed. The magnetic isotope effect in a gas phase and influence of ultrasonic waves with a power below the cavitation threshold on photochemical reactions are revealed.
A computer program is developed and allows fine-structure analysis by an derivative spectroscopy method as well as fitting of a contour of a complex IR spectral distribution by elementary bands, not having a priori information about the number and spectral parameters of these bands. Use of this program has permitted new data on the structure of aluminium hydroxides: gibbsite, bayerite, and boehmite to be obtained.

Laboratory of Radio and Mass Spectroscopy
Head - Cand.Sci. (Engineering) Igor Ugolev

The Laboratory was founded in 1997. The scientific direction is associated with investigating the properties of organic and inorganic compounds to design chemical radiation monitors.
Variations in physicochemical properties of alkali-earth metal dithionates subjected to ionizing radiation (gamma-, X-ray, beta) are studied. The chemical barium dithionate-based radiation monitor (Specs RB 0.35.95 196.040-98) and the chemical spin-resonance radiation monitor DB-1 are designed. The methods of measuring an absorbed dose of X-ray radiation are developed by using electron paramagnetic resonance (EPR) device (14801519.EIS.1998002-01-MVI).
Systematic investigations of the sorption properties of fibrous ion exchangers of FIBAN type in relation to radionuclides Cs-137 and Sr-90 (in cooperation with the Laboratory of Ion Exchange and Sorption) have permitted a number of preparation methods of water and milk sampling to be created for subsequent determination of the Cs-137 and Sr-90 contents according to the assignments of the State Scientific and Technical Program "Radioecology". The methods developed are approved by the State Standard authorities of the Republic of Belarus and are put into the state register.
The Laboratory provides the research subdivisions of the Institute with electron paramagnetic resonance spectroscopy, X-ray photoelectron spectroscopy, mass spectroscopy and radiometry measurements. The methods of spin and radioactive marks have found wide use.

Laboratory of Physicochemical Methods
Head - Cand. Sci. (Engineering) Aleksandr Potapovich

The Laboratory was organized in 1972 to provide the Institute's investigations with modern physicochemical methods.
At present the Laboratory provides the Institute with the following methods:
- atomic-absorption spectroscopy (Spectr AA200 Varian);
- classic microanalysis of organic compounds, solid and liquid, for the following elements: H, C, N, Br, J, S, Na, B, Si, P, metals forming stable oxides;
- ion chromatography. Chromatograph "Tsvet 3006" is used to determine content of anions Cl-, F-, Br-, NO3-, SO42-, PO43- in aqueous media;
- thermal differential analysis. Organic and inorganic compounds are being examined in an inert medium and air;
- X-ray diffractometry. A phase composition of inorganic compounds and a crystallinity degree of polymeric materials are being determined.
The most important are the following developments: interpretation of the so-called "oxygen effect" in EPR spectroscopy of carbon-containing materials; floating microheterogeneity model used for explaining complex spectra of NMR solid hydrated compounds; investigations of the anomalous kinetics of thermal decomposition of dithionates; concepts of dissociation of coordinated water in solid hydrates and allied new models for acid-base catalyst action have found acknowledgement of research community (V. Makatun).

Information - Patent Department
Head - Tamara Borodina

The Department was set up in 1963. It provides the researchers of the Institute with scientific-technical and patent information in the fields of their scientific activity. It is dealing with preparing information and advertising materials about the Institute and its developments and with arranging the Institute's participation in exhibitions.
The Department takes part in revealing the objects of the Institute's production property and provides for their legal protection in the Republic of Belarus and abroad. It concludes license contracts on the use of scientific and technical developments and patented inventions.
The Institute has received more than 900 author's certificates of the USSR and patents of the Republic of Belarus and Russian Federation.

Group of Computer Facilities
Head - Mikhail Zhamoizdik

The Group was organized in 1996 to centrolize computer maintenance at the Institute. It is the Group's duty to complete computer hardware and program products as well as to perform prompt diagnostics, remove faults and provide maintenance.
In 1997 a local computer network was organized, allowing an E-mail to be used by the Institute's researchers and providing access to the Academic Network "BASNET" and "INTERNET".

HOME     ABOUT      FIBAN      BIONA      MIFIL     AMINOACIDS

 

Address: 13 Surganov street, Minsk 220072, Belarus
Tel: (375 17) 2842373, Fax: (375 17) 2840973
E-mail: fiban@ifoch.bas-net.by, info@ifoch.bas-net.by