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Ivanovo, Russia

Ivanovo State University of Chemistry and Technology or ISUCT is a research facility and a university located in Ivanovo, the administrative center of Ivanovo Oblast, Russia.It was founded in 1918 as Chemical Faculty of Ivanovo-Vosnesensk Polytechnic Institute. In 1930, Ivanovo-Vosnessensk Polytechnic Institute was split into four independent schools: Ivanovo Textile Institute, Ivanovo Power Institute, Civil Engineering Institute, and Ivanovo Institute of Chemistry and Technology . The latter gained a new status in 1992 and was renamed to Ivanovo State Academy of Chemistry and Technology, and in 1998 it was renamed again, becoming Ivanovo State University of Chemistry and Technology. ISUCT trained more than 35,000 engineers, about 1,000 Candidates of Science, and over 90 Doctors of Science during years of its existence.Currently the Ivanovo State University of Chemistry and Technology takes the 11th place in the rating of National Universities and Institutes. Wikipedia.

Bushuev Y.G.,Ivanovo State University of Chemistry and Technology | Sastre G.,Polytechnic University of Valencia
Journal of Physical Chemistry C

Water in pure silica zeolites (zeosils) may behave as a "bumper" by absorbing mechanical energy of the intruded water, as a "spring" by restoring after extrusion of the energy spent in intrusion, or as "shock absorber" by dissipating the energy. The understanding of how the structure and topology of the zeosils are responsible of such behavior has not yet been fully clarified. Molecular dynamics and molecular mechanics simulations of IFR- and TON-type zeosils have been performed in an attempt to elucidate the energetics of these materials after water intrusion-extrusion. We aim our simulations to capture the experimentally observed "bumper" and "spring" water-zeosil behavior of IFR and TON, respectively. The excess energy with respect to dry zeosil was calculated, and this relates to the energetic response of the zeosil after water intrusion. We found that the excess energy of water-TON is larger than the energy of bulk water at any loading. The small opening of the TON channel prevents the formation of energetically stable bulky water clusters. The water content was shown to be stabilized on a certain loading range in water-IFR. It was shown that any silanol defects in IFR framework channels stabilize systems. Defect positions (silanol groups), which make the water-IFR system energetically stable, are found. Silanol groups increase the hydrophilicity of IFR-type zeosil, initially hydrophobic. There are two factors explaining the bumper behavior (under high pressure, water penetrates into the zeosil channels and remains there even after the pressure is released) of water-IFR systems: channel size and hydrolisis leading to framework breaking under large hydrostatic pressure. Silanol groups in channels are centers of water clusterization. The chemical stability of TON framework and its small channel size explain its spring behavior. © 2011 American Chemical Society. Source

Zaichikov A.M.,Ivanovo State University of Chemistry and Technology
Journal of Structural Chemistry

The structural and thermodynamic characteristics of amide solvents are calculated with different types of molecular self-assembly through hydrogen bonding. Under a model-based approach, the specific and nonspecific components of the total energy of intermolecular interactions are identified for primary, secondary, and tertiary amides of carboxylic acids. It is found that similarly to water, primary amides have a network of hydrogen bonds and belong to the class of liquids characterized by an increase in nonspecific interactions with temperature. In secondary amides with the chain self-assembly, the contribution of these interactions is practically independent of temperature, and in tertiary amides it decreases with an increase in temperature. The molar values of the specific and nonspecific components are used to analyze the intermolecular interactions and the structural properties of amides with different degrees of N-substitution. © 2012 Pleiades Publishing, Ltd. Source

Makarov S.V.,Ivanovo State University of Chemistry and Technology | Silaghi-Dumitrescu R.,Babes - Bolyai University
Journal of Sulfur Chemistry

In this paper, the implications of sodium dithionite and of some of its related compounds for the development of chemistry in the twentieth century, as well as their applications in newer fields of chemistry, are described. © 2013 Copyright Taylor and Francis Group, LLC. Source

Prokof'ev V.Yu.,Ivanovo State University of Chemistry and Technology
Kinetics and Catalysis

Methods of measuring the characteristics of molding masses for extrusion are classified. It is suggested that the measurable properties be divided into two groups, one including structural mechanical properties and the other including rheological properties. For estimating the suitability of a molding mass for extrusion of catalysts of preset shape, it is necessary to carry out an integrated analysis of the properties of the mass. The optimum parameters of molding masses have been determined. © Pleiades Publishing, Ltd., 2012. Source

Kolker A.M.,RAS Institute of Chemistry | Safonova L.P.,Ivanovo State University of Chemistry and Technology
Journal of Chemical Thermodynamics

The molar heat capacities of the (water + acetonitrile) mixtures have been measured at T = (283.15, 298.15, 313.15, and 328.15) K as a function of mole fraction. The excess molar heat capacities, Cp E, limiting partial molar heat capacities of water and acetonitrile over(C, -)p {ring operator} have been calculated. The excess molar heat capacities are positive over the whole mole fraction range and increase with increasing temperatures from (283.15 to 328.15) K. The excess molar heat capacities have been fitted to the Redlich-Kister equation. © 2010 Elsevier Ltd. All rights reserved. Source

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