Department of physical chemistry

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ABOUT WAYS OF DESTRUCTION FILL IN IN THE FULFILLED SOLUTIONS OF

THE CHROMIC TANNING

E.M. Gûl′handan′ân 1 , V.P. Panov 2 , V.M. Nikolskiy 3 , E.S. Loginova 3

1 Moscow State University of Technologies and Management named after K.G. Razumovskiy branch in Tver

2 Saint-Petersburg State University of Technology and Design

3 Tver State University

The structure of micelles - the weighed particles of the fulfilled solution of chrome (III) after receiving a tanned semi-finished product is offered. Ways are investigated and conditions of allocation of the weighed particles from solution or due to binding of the potential-determined ions as a result of oxidation-reduction reaction, or as a result of course of ionic reaction of an exchange are picked up.

Keywords: the fulfilled solution of chrome (III), micelle, binding of the potential-determined ions.

INFLUENCE AGROGUMATA POTASSIUM

NUTRIENT REGIME SOD-PODZOLIC SOILS AND PRODUCTIVITY

I.N. Baranovsky, M.A. Sokolov

Tver State Agricultural Academy

Department of Agricultural Chemistry, Soil Sciense and Agroecology

The results of studies on the effect of potassium agrogumata inscribed in pure form and in conjunction with other organic substrates on the nutrient status of sod-podzolic soil productivity experienced cultures and heavy metal content in barley grain

Keywords: agrogumat potassium, mechanochemistry, sod-podzolic soil, mobile forms of nutrients, heavy metals, productivity.

SYNTHESIS AND THERMAL STABILITY IONIC LIQUIDS

DERIVATIVE OF BIS-(N,N-DIMETHYLAMIDE) METHYLPHOSPHONIC ACID

O.E

. Zhuravlev, I.A. Presnyakov, A.A. Belyaeva, L.I.Voronchikhina

Tver state university

Department of organic chemistry

In work synthesized new ionic liquids tetrafluoroborates bis-(N,N-dimethyl-N-alkylamide) methylphosphonic acid and studied their thermal stability. Also, a comparative analysis of the thermal stability of halides and tetrafluoroborates bis-(N, N-dimethyl-N-alkylamide) methylphosphonic acid.

Keywords: ionic liquids, quaternary ammonium salts, tetrafluoroborates.

ORGANIC SALTS OF SULFAMIDS

L.I. Voronchihina, O.E. Zhuravlev, N.I. Krotova, Y.A. Orlikova

E.V. Rybakov

Tver state university

Department of organic chemistry

Synthesized new organic salts of sulfonamides ion exchange reaction between long-chain quaternary pyridinium salts, ammonium and sodium salts of sulfonamide, and sulfadimezina sulfodimetoksin.

Studied bactericidal ability of organic salts of the sulfonamide; shown that the investigated salts exhibit greater bactericidal compared to the parent compounds. Given that the synthesized compounds are poorly soluble in water, they can be used for dressing fibers, materials to render them bactericidal properties, while necessary to conduct synthesis of substances directly onto the fixing of the preparation and acquisition sustained antimicrobial effect with repeated washings.

Keywords: sulphamides, cationic surfactants, the bactericidal properties

SYNTHESIS AND PROPERTIES OF DERIVATIVES ALKILIMIDAZOLINOV

N.V. Verolaynen, V.E. Petrova, S.A. Temnikova

Tver State University

Department of Organic Chemistry

By ethylene diamine condensation with carbonic acids was synthesized 2-alkilimidazoliny. By alkylation reaction 2-alkilimidazolinov received the quaternary salts which consist of surface-active substances cation. Colloidal and chemical properties was studied.

Keywords: imidazoline, alkilimidazoline, surface-active substances, superficial activity.

NANOPARTICLE DROPLETS AT THE POLYMER BRUSH

SOLVENT INTERFACE

1 О. А. Guskova, 2 C. Seidel

1 Leibniz Institute of Polymer Research Dresden, Hohe Str. 6, 01069

2

Dresden, Germany

Max Planck Institute of Colloids and Interfaces, Am Mühlenberg, 1, 14476

Potsdam, Germany

The behaviour of nanoparticles at the homopolymer brush/solvent interface is investigated by dissipative particle dynamics. The simulation results show that the shape of nanodroplets located on the brush surface can be controlled by tuning the interaction parameters.

Key words: polymer brush, nanoparticles, wetting, spreading, contact angle, Antonov’s rule, computer simulation, dissipative particle dynamics, spreading (S) and entry (E) coefficients.

INVARIANCE OF STRUCTURAL CHARACTERISTICS OF DENDRIMERS TO

STIFFNESS OF BOND ANGLES AND ANGLES OF BRANCHING

А.А. Darinskii 1 , I.V. Mikhailov 1 , О.V. Shavykin 2

1 Institute of Macromolecular Compounds, Russian Academy of Science,

St. Petersburg

2 Tver State University

The influence of fixing of the bond angles on the structural properties of dendrimers 3-5 generations was studied by means of the Langevin dynamics method. It was shown that fixing average bond angles and angles of branching have little effect on the size and shape of the dendrimer at them similar value. Along with it difference was found in orientation and stretching of spacer at introduction of angular potentials in macromolecule model.

Keywords: dendrimers, Langevin dynamics, computer simulation

QUANTUM CHEMICAL STUDY OF THE ELECTRON EFFECTS IN

FLUOROALKANES

N. P. Rusakova 1 , A. V. Kotomkin 1 , V. V. Turovtsev 1,2

1

Tver State University

, Yu.D. Orlov 1

2

Tver State Medical Academy

The analysis of intramolecular interactions and scale of electronegativity in n -fluoroalkanes C n

H

2n+1

F, where 1 < n <7, were made in framework of "quantum theory of atoms in molecules» (QTAIM).

Keywords: electronegativity, scale of electronegativity, inductive effect, steric effect, quantum theory of atoms in molecules, QTAIM, electronic density, effective charge

STUDY OF ELECTRONIC STRUCTURE OF ORGANIC FREE RADICALS IN

FRAMEWORK «QUANTUM THEORY OF ATOMS IN MOLECULE».

FORMYLRADICALS

E.M. Chernova 1 , V.V. Turovtsev 1.2

, Yu.D. Orlov 1

1 Tver state university

2 Tver state medical academy

Structures of RC

(O) free radicals were found by method B3LYP/6-311++G(3df, 3pd), and their electronic density distributions were studied in framework of «quantum theory of atoms in molecule»

(QTAIM). It is shown that free valence is localized at C

 O group and it’s the nearest environment.

Changes of integral group electron characteristics were under consideration.

Keywords: quantum theory of atoms in molecule, the electron density distribution, inductive effect, charges at atoms, spin density, QSPR, formyl radicals

GRAPHIC DEPENDENCES IN THE STUDY OF CORRELATIONS "STRUCTURE –

ENTHALPY FORMATION" CHLORODERIVATIVES ALKYLSILANE

M.G. Vinogradova, Yu.G. Papulov, Yu.A. Fedina

Tver State University

Department of physical chemistry

A graphic dependences of the enthalpy of formation of alkylsilane chloroderivates at individual factors of chemical structure are constructed and analyzed. Found that in some cases there is a change symbatic properties P and topological index (TI), it indicates a good correlation between P and TI. In other cases, no such correlation. With an increasing number of isomers correlation between the property P and TI complicated.

Keywords : graphic dependences, isomers, topological indexes

SIX-VERTEX GRAPHS AND THEIR APPLICATIONS

Yu.G. Papulov, Yu.A. Fedina, M.G. Vinogradova

Tver State University

Department of physical chemistry

The graphs with six vertices and their some chemical applications are discussed.

Key words: graphs, represent of molecules, graphical enumeration.

STRUCTURAL ORGANIZATION OF AN IONIC LIQUID/AMPHIPHILE SYSTEM. I.

SHORT ALCYL TAIL

A.S. Pavlov 1 , L.V. Zherenkova 2

Tver State University

1

Department of Physical Chemistry

2

Department of General Physics

Using PRISM method the structural characteristics of aprotic ionic liquid/nonionic amphiphile system have been investigated for the case of short alkyl tail. Particular emphasis is placed on the analysis of the characteristic scales of structural heterogeneities of the mixture at the stage of amphiphile selfassembly.

Keywords : ionic liquid, amphiphiles, integral equation theory, structure factor

STRUCTURAL ORGANIZATION OF IONIC LIQUID/AMPHIPHILE SYSTEM. II.

MEDIATE ALCYL TAIL

A.N. Belov, A.R. Novoselov, L.V. Zherenkova

Tver State University

Department of General Physics

The structural characteristics of nonionic amphiphile in alkylimidazolium based ionic liquids have been investigated on the basis of the PRISM method. The case of mediate cationic tails has been considered. At the initial stage of amphiphile self-assembly, the comparison of the characteristic scales of the ordering at different lengths of cationic tail has been made.

Keywords: ionic liquid, amphiphiles, integral equation theory, structure factor.

THE SELF-ASSEMBLY OF AMPHIPHILES IN AN ALKYLIMIDAZOLIUM BASED

IONIC LIQUID

A.A. Mikheeva 1 , S.A. Vasiljev 1 , P.V. Komarov 2 , L.V. Zherenkova 1

Tver State University

1 Department of General Physics

2

Department of Theoretical Physics

The process of self-assembly of nonionic amphiphiles in an aprotic ionic liquid has been investigated on the base of the integral equation theory. The dependences of aggregation characteristics, in particular, the mean-field spinodal temperature on the amphiphile concentration have been estimated.

Keywords: ionic liquid, amphiphile, microphase separation, self-assembly, integral equation theory

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