Zobrazeno 1 - 10
of 36
pro vyhledávání: '"K. M. Skupov"'
Autor:
R. Yu. Nikiforov, L. E. Starannikova, Yu. P. Yampolskii, Yu. A. Volkova, A. Yu. Alentiev, I. I. Ponomarev, K. M. Skupov, Inga A. Ronova, D. A. Bezgin
Publikováno v:
Membranes and Membrane Technologies. 3:199-205
New film-forming copolymers PIM-1 with 2,3,6,7-tetrahydroxy-9,10-(p-fluorophenyl)anthracene units in the main chain have been synthesized and investigated. The investigated gas separation characteristics of these copolymers show that despite a decrea
Autor:
A. S. Senchukova, Iv. I. Ponomarev, D. Yu. Razorenov, A. A. Lezov, N. V. Tsvetkov, I. I. Ponomarev, Yu. Yu. Rybkin, Yu. A. Volkova, K. M. Skupov
Publikováno v:
Russian Chemical Bulletin. 69:2320-2327
New possibilities for the synthesis of high-molecular weight poly(2,5(6)-benzimidazole) (ABPBI) based on a new monomer, 3,4-diaminobenzoic acid monophosphate, in polyphosphoric acid medium at high monomer concentration under stirring and on a Teflon
Autor:
Igor I. Ponomarev, I. I. Ponomarev, Yulia A. Volkova, A. V. Muranov, Dmitry Y. Razorenov, K. M. Skupov, Inesa V. Blagodatskikh, Konstantin A. Lyssenko, Liudmila E. Starannikova, D. A. Bezgin, Yuri Yampolskii, Alexander Alentiev
Publikováno v:
Mendeleev Communications. 30:734-737
New PIM-1 copolymers with 2,3,6,7-anthracenetetrayl moiety have been synthesized as fine powders from 2,3,6,7-tetrahydroxy-9,10-di(p-fluorophenyl)anthracene monomer in DMSO, with crystal structure of the monomer as well as its precursors and the prod
Autor:
Iv. I. Ponomarev, K. M. Skupov, Yu. M. Volfkovich, Valentin E. Sosenkin, I. I. Ponomarev, Alexander D. Modestov, D. Yu. Razorenov, Yu. A. Volkova
Publikováno v:
Polymer Science, Series C. 62:231-237
Materials based on pyrolyzed electrospun nanofiber polyacrylonitrile were studied by the method of standard contact porosimetry. An influence of oxidation and pyrolysis temperatures on specific surface area. It was shown that an increase of oxidation
Autor:
Yu. A. Volkova, K. M. Skupov, I. I. Ponomarev, Iv. I. Ponomarev, D. Yu. Razorenov, M. M. Ilyin, V. A. Muravyova, E. M. Chaika
Publikováno v:
Polymer Science, Series C. 62:214-221
A number of copolymers based on 5(6),5′(6′)-bis(benzimidazole) oxide, 1,7-dihydrodiimidazo[4.5-b:4'.5'-e]pyridine, and 4,4'-difluorobenzophenone are first synthesized. The features of synthesis, molecular weight, and thermal characteristics of th
Autor:
A. V. Muranov, K. M. Skupov, Iv. I. Ponomarev, I. I. Ponomarev, Yu. A. Volkova, Inesa V. Blagodatskikh, D. Yu. Razorenov
Publikováno v:
Polymer Science, Series C. 62:259-265
A new method for activating the synthesis of high molecular weight polymer PIM-1 obtained in dimethyl sulfoxide is proposed and studied. A simple and technologically effective process of precipitation polyheterocyclization occurs at 60–80°C for 2
Autor:
Yu. M. Volfkovich, A. G. Buyanovskaya, D. Yu. Razorenov, Iv. I. Ponomarev, Yu. A. Volkova, K. M. Skupov, Valentin E. Sosenkin, V. N. Talanova, I. I. Ponomarev
Publikováno v:
Russian Chemical Bulletin. 69:1106-1113
According to standard contact porosimetry data, treatment of electrospun pyropolymer mats based on pyrolyzed polyacrylonitrile and polybenzimidazole (PBI) nanofibers with a mixture of sulfuric and nitric acids causes a drastic increase in the specifi
Autor:
Igor A. Nikovskiy, Yulia V. Nelyubina, Nikolay N. Efimov, K. M. Skupov, Valentin V. Novikov, Anton I. Cherevko
Publikováno v:
Polymers, Vol 13, Iss 3881, p 3881 (2021)
Polymers
Polymers; Volume 13; Issue 22; Pages: 3881
Polymers
Polymers; Volume 13; Issue 22; Pages: 3881
Here we report new porous carbon materials obtained by 3D printing from photopolymer compositions with zinc- and nickel-based metal–organic frameworks, ZIF-8 and Ni-BTC, followed by high-temperature pyrolysis. The pyrolyzed materials that retain th
Autor:
Artem V. Bakirov, N. V. Kuchkina, Zinaida B. Shifrina, K. M. Skupov, Aziz M. Muzafarov, Olga A. Serenko
Publikováno v:
Nanomaterials
Volume 11
Issue 10
Nanomaterials, Vol 11, Iss 2600, p 2600 (2021)
Volume 11
Issue 10
Nanomaterials, Vol 11, Iss 2600, p 2600 (2021)
The porous structure of second- and third-generation polyphenylene-type dendrimers was investigated by adsorption of N2, Ar, and CO2 gases, scanning electron microscopy and small-angle X-ray spectroscopy. Rigid dendrimers in bulk are microporous and
Autor:
Dmitry Y. Razorenov, K. M. Skupov, Igor I. Ponomarev, Yulia A. Volkova, Ludmila Starannikova, Konstantin A. Lyssenko, I. I. Ponomarev, Alexander Alentiev, Yuri Yampolskii, Zinaida S. Klemenkova
Publikováno v:
Mendeleev Communications. 29:663-665
Nitrile groups of model [1,4]benzodioxino[2,3-b]oxanthrene- 6,13-dicarbonitrile were transformed into quinazoline moieties by heterocyclization with benzanilides. The procedure was extended for PIM-1 modification to obtain gas separation membranes wi