Zobrazeno 1 - 10
of 87
pro vyhledávání: '"Lev N. Nikitin"'
Autor:
Ivan S. Chaschin, Maria G. Chernysheva, Sergey S. Abramchuk, N.M. Anuchina, Natalia P. Bakuleva, Gennadii A. Badun, Lev N. Nikitin
Publikováno v:
Materials Science Forum. 935:100-107
For the first time the influence of pressure of chitosan solutions in carbonic acid on the adsorption of chitosan onto a collagen tissue of biological heart-valve prostheses and on the structure of the resulting biocomposite was studied. It turned ou
Publikováno v:
Доклады академии наук. 481:39-44
Publikováno v:
Polymer Science, Series A. 60:507-514
Possible prospects of application of porous polymer matrices with closed pores as selective protonconducting membranes are discussed. Such systems are well known; however, their application to mass transfer is traditionally underestimated. Neverthele
Publikováno v:
Doklady Chemistry. 481:139-144
A new synthetic route was developed to three-module type potential hydrophobic agents, with the molecule consisting of an N-[3-(triethoxysilyl)propyl]amide anchor part (I), a connecting unit formed upon 1,3-propansultone ring cleavage (II), and a pol
Autor:
N. I. Nikonorova, Elena S. Trofimchuk, A. L. Volynskii, Igor V. Yaminsky, E. G. Rukhlya, Aleksandr V. Efimov, Anna O. Dudnik, Lev N. Nikitin
Publikováno v:
Macromolecules. 51:1129-1140
The process of open-porous structure development in high-density polyethylene (HDPE) films during uniaxial deformation in supercritical carbon dioxide (SC-CO2) fluid at 35 °C and 10 MPa has been studied and visualized by means of atomic force micros
Autor:
L. A. Vasserman, Mikhail I. Buzin, Lev N. Nikitin, R. S. Begunov, N. M. Belomoima, I. S. Chashchin, A. I. Khlopotinin, E. G. Bulycheva
Publikováno v:
Doklady Chemistry. 475:159-163
A method of synthesis of new fluorine-containing tetraamine, 2,2-bis[4-(3,4-diaminophenoxy) phenyl]hexafluoropropane, has been developed; the tetraamine has been used as the initial compound for preparing poly(phenylquinoxaline)s in both supercritica
Publikováno v:
Doklady Physical Chemistry. 475:134-137
The effect of pressure in solutions of chitosan in carbonic acid with the AgNO3 precursor on the structure of cast nanocomposite films with silver nanoparticles has been studied for the first time. The size of silver nanoparticles can be controlled b
Autor:
Timofei E. Grigoriev, Natalia P. Bakuleva, Ivan S. Chaschin, Lev N. Nikitin, S. V. Krasheninnikov
Publikováno v:
Journal of the Mechanical Behavior of Biomedical Materials. 67:10-18
A mixture of water/carbon dioxide is a "green" perspective solvent from the viewpoint of biomedical applications. Clathrate hydrates are formed this solvent under certain conditions and a very interesting question is the impact of clathrates hydrates
Autor:
Viktor G. Vasil'ev, I. V. Elmanovich, Maria Bruma, Nataliya M. Belomoina, Еlena G. Bulycheva, Lev N. Nikitin
Publikováno v:
The Journal of Supercritical Fluids. 113:66-71
A study of the formation of poly(phenylquinoxaline)s in supercritical carbon dioxide was performed. It was found that the reaction conditions of cyclopolycondensation had a significant impact on the formation of polymers. When using certain catalysts
Publikováno v:
Doklady Chemistry. 468:195-198
The effect of the clathrate hydrate environment in the water/carbon dioxide system on the structure of the chitosan-coated collagen xenograft tissue was demonstrated. The collagen xenograft tissue treated in this environment is a porous material with