Zobrazeno 1 - 10
of 21
pro vyhledávání: '"E. P. Astapenko"'
Publikováno v:
Опухоли женской репродуктивной системы, Vol 18, Iss 1, Pp 97-102 (2022)
Cervical cancer (CC) occupies the fifth place in the structure of female oncopathology (n Russia. The share of CC is 5.2 % among all oncological diseases. iin Russia, 6.392 women died of CC in 2018. And the mortality rate from this disease is growing
Externí odkaz:
https://doaj.org/article/ace4fc51af9b489e9300822d5f15a2ca
Publikováno v:
Russian Journal of Applied Chemistry. 86:756-759
The influence of weight-average molecular mass Mw on the maximal width of a conducting layer hmax of polysterene, polymethylmethacrylate, and polyamidine films was investigated. It was shown that hmax increases in proportion to MwS for all investigat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::48fed67257a3cb8ca15327c68903fd53
https://doi.org/10.1134/s1070427213050236
https://doi.org/10.1134/s1070427213050236
Autor:
M. A. Bezrukova, A. N. Podseval’nikova, E. P. Astapenko, N. V. Tsvetkov, E. V. Lebedeva, Albert K. Khripunov, S. V. Bushin, N. G. Mikusheva
Publikováno v:
Cellulose. 20:1057-1071
Synthesized cellulose pelargonates, tridecanoates, valerates, and acetovalerates of various molecular weights are studied in chloroform, dioxane, and tetrachloroethane solutions by the methods of isothermal translational diffusion, sedimentation velo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b460999d4817c3ba5f9a70c60d5effa8
https://doi.org/10.1007/s10570-013-9913-7
https://doi.org/10.1007/s10570-013-9913-7
Autor:
Nikolai V. Tsvetkov, A. N. Podseval’nikova, V. O. Ivanova, E. V. Lebedeva, S. V. Bushin, A. V. Pavlov, Albert K. Khripunov, M. A. Bezrukova, E. P. Astapenko
Publikováno v:
Russian Journal of Applied Chemistry. 85:963-968
Cellulose tridecanoates of various molecular weights were synthesized, and their characteristics in chloroform and tetrachloroethane solutions were studied by methods of translational diffusion, velocity sedimentation, flow birefringence (Maxwell’s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::14949c41fb0be2ac1b5b5c06c6b5f6ac
https://doi.org/10.1134/s1070427212050225
https://doi.org/10.1134/s1070427212050225
Publikováno v:
Polymer Science Series A. 51:761-768
Using the methods of molecular hydrodynamics, structural-conformational studies have been performed for a number of cellulose valerate and acetovalerate samples in the molecular-mass range M = (58.1–464.3) × 103 and with a mean degree of substitut
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4edeade32f2569b3c08850a24fb48f99
https://doi.org/10.1134/s0965545x09070025
https://doi.org/10.1134/s0965545x09070025
Publikováno v:
Polymer Science Series A. 49:71-76
Cellulose myristate samples with a degree of substitution of 230–250 have been studied by the methods of molecular hydrodynamics (viscometry, analytical ultracentrifugation (flotation), and isothermal translational diffusion) in chloroform in the r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::389b44840aac4531659db6e815cedaa8
https://doi.org/10.1134/s0965545x07010105
https://doi.org/10.1134/s0965545x07010105
Autor:
E.V. Belyaeva, A. Yu. Bilibin, L. N. Andreeva, E. P. Astapenko, S. V. Bushin, Andrey V. Tenkovtsev, C.P. Smirnov, A.R. Stepanova, V.N. Tsvetkov
Publikováno v:
European Polymer Journal. 28:955-959
The hydrodynamic, optical and conformational properties of molecules of fractions of two aromatic polyesters (APE) containing 3,3′-biphenylene fragments in their chains have been investigated by sedimentation-diffusion analysis and flow birefringen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6eac3fd1cf940da9838d75825cf40507
https://doi.org/10.1016/0014-3057(92)90324-u
https://doi.org/10.1016/0014-3057(92)90324-u
Autor:
V.B. Novakovsky, Olga V. Okatova, M.G. Vitovskaya, Peter N. Lavrenko, V.N. Tsvetkov, E. P. Astapenko, S. V. Bushin
Publikováno v:
European Polymer Journal. 18:583-588
Translational diffusion, velocity sedimentation and viscometry of polyamidobenzimidazole (PABI) solutions in the range of M = (1–61) · 10 3 have been investigated in N , N -dimethylacetamide (DMA) and 98% H 2 SO 4 . The dependences of D 0 , S 0 an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0623833ae0436c8a29c0536ca07b1ad4
https://doi.org/10.1016/0014-3057(82)90035-0
https://doi.org/10.1016/0014-3057(82)90035-0
Autor:
G. I. Kudryavtsev, E. P. Astapenko, V.B. Novakovskii, L. V. Avrorova, A.V. Tokarov, M.G. Vitovskaya, V.N. Tsvetkov, S. V. Bushin, S.A. Didenko, Peter N. Lavrenko, Olga V. Okatova
Publikováno v:
ResearcherID
The translational diffusion, rapid sedimentation and visocity have been studied on 32 fractions of polyamido benzimidazole (PA) in DMA and 97·8% H2SO4. The mol. wt. were calculated from the diffusion and sedimentation results in DMA. The Tsvetkov-Kl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::21210a2d049a1fdaa88dac6cc7ae3e08
https://doi.org/10.1016/0032-3950(81)90238-0
https://doi.org/10.1016/0032-3950(81)90238-0
Publikováno v:
Polymer Science U.S.S.R.. 20:363-370
The rapid sedimentation, progressive diffusion and intrinsic viscosity of 17 polyamide hydrazide (PAH) samples have been measured in dimethyl sulphoxide (DMSO) and dimethylacetamide (DMA). The possibility is shown of calculating mol. wt. from the dif
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8db44e1d63f49a9ef5a1e6d146d8086c
https://doi.org/10.1016/0032-3950(78)90045-x
https://doi.org/10.1016/0032-3950(78)90045-x