Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Polina N. Bolotskova"'
Autor:
Nikolai F. Bunkin, Polina N. Bolotskova, Sergey V. Gudkov, Minh T. Khuong, Valeriy A. Kozlov, Svetlana L. Timchenko, Valeriy V. Voronov, Yulia V. Novakovskaya
Publikováno v:
Polymers, Vol 16, Iss 6, p 744 (2024)
The peculiarities of crystal growth on a Nafion polymeric substrate from supersaturated aqueous solutions of initial substances were studied. The solutions were prepared based on deionized natural water and deuterium-depleted water. As was found earl
Externí odkaz:
https://doaj.org/article/d511d51194124c288725fd896bb684bd
Autor:
Sergey V. Gudkov, Maxim E. Astashev, Ilya V. Baymler, Polina N. Bolotskova, Valery A. Kozlov, Alexander V. Simakin, Minh T. Khuong, Polina A. Fomina, Nikolai F. Bunkin
Publikováno v:
Materials, Vol 16, Iss 13, p 4622 (2023)
Photoluminescence from the surface of Nafion polymer membrane upon swelling in water under irradiation by electromagnetic waves at a frequency of 100 MHz was studied. In these experiments, natural deionized (DI) water with a deuterium content of 157
Externí odkaz:
https://doaj.org/article/5138377e129f4346a8b6a297f6dbbbf0
Autor:
Barry W. Ninham, Matthew J. Battye, Polina N. Bolotskova, Rostislav Yu. Gerasimov, Valery A. Kozlov, Nikolai F. Bunkin
Publikováno v:
Polymers, Vol 15, Iss 9, p 2214 (2023)
The work reports a number of results on the dynamics of swelling and inferred nanostructure of the ion-exchange polymer membrane Nafion in different aqueous solutions. The techniques used were photoluminescent and Fourier transform IR (FTIR) spectros
Externí odkaz:
https://doaj.org/article/8c011c3d78bb42e7850bb543a962bf73
Autor:
Nikolai F. Bunkin, Polina N. Bolotskova, Yana V. Gladysheva, Valeriy A. Kozlov, Svetlana L. Timchenko
Publikováno v:
Polymers, Vol 14, Iss 19, p 4007 (2022)
As was found in our previous works, when Nafion swells in water, polymer fibers unwind into the bulk of the surrounding liquid. This effect is controlled by the content of deuterium in water. Here, we present the results of studying the dynamics of m
Externí odkaz:
https://doaj.org/article/829f987a92874ca583feb20dc97f51d1
Possibility to Alter Dynamics of Luminescence from Surface of Polymer Membrane with Ultrasonic Waves
Autor:
Nikolai F. Bunkin, Maxim E. Astashev, Polina N. Bolotskova, Valeriy A. Kozlov, Artem O. Kravchenko, Egor I. Nagaev, Maria A. Okuneva
Publikováno v:
Polymers, Vol 14, Iss 13, p 2542 (2022)
The temporal dynamics of luminescence from the surface of Nafion polymer membranes have been studied. In fact, the polymer membrane was soaked in liquids with different contents of deuterium. The test liquids were ordinary (natural) water (deuterium
Externí odkaz:
https://doaj.org/article/47071bcb06644a09abb7038487eccd54
Autor:
Barry W. Ninham, Polina N. Bolotskova, Sergey V. Gudkov, Ekaterina N. Baranova, Valeriy A. Kozlov, Alexey V. Shkirin, Minh Tuan Vu, Nikolai F. Bunkin
Publikováno v:
Polymers, Vol 14, Iss 8, p 1511 (2022)
When a membrane of Nafion swells in water, polymer fibers “unwind” into the adjoining liquid. They extend to a maximum of about ~300 μm. We explore features of Nafion nanostructure in several electrolyte solutions that occur when the swelling is
Externí odkaz:
https://doaj.org/article/e0e5e0a611ce485282fd895e70b04c83
Autor:
Nikolai F. Bunkin, Polina N. Bolotskova, Elena V. Bondarchuk, Valery G. Gryaznov, Valeriy A. Kozlov, Maria A. Okuneva, Oleg V. Ovchinnikov, Oleg P. Smoliy, Igor F. Turkanov, Catherine A. Galkina, Alexandr S. Dmitriev, Alexandr F. Seliverstov
Publikováno v:
Polymers, Vol 14, Iss 4, p 688 (2022)
Photoluminescence from the surface of a Nafion polymer membrane upon swelling in isotonic aqueous solutions and Milli-Q water has been studied. Liquid samples were preliminarily processed by electric pulses with a duration of 1 μs and an amplitude o
Externí odkaz:
https://doaj.org/article/96940990e9d94d51a3f49ae79267488e
Autor:
Nikolai F. Bunkin, Polina N. Bolotskova, Elena V. Bondarchuk, Valery G. Gryaznov, Valeriy A. Kozlov, Maria A. Okuneva, Oleg V. Ovchinnikov, Nikita V. Penkov, Oleg P. Smoliy, Igor F. Turkanov
Publikováno v:
Polymers, Vol 13, Iss 16, p 2635 (2021)
In photoluminescence spectroscopy experiments, the interaction mode of the polymer membrane Nafion with various amino-acids was studied. The experiments were performed with physiological NaCl solutions prepared in an ordinary water (the deuterium con
Externí odkaz:
https://doaj.org/article/d8c72d907dc84065b34f0a7f3f6fba57
Autor:
Nikolai F. Bunkin, Polina N. Bolotskova, Elena V. Bondarchuk, Valery G. Gryaznov, Sergey V. Gudkov, Valeriy A. Kozlov, Maria A. Okuneva, Oleg V. Ovchinnikov, Oleg P. Smoliy, Igor F. Turkanov
Publikováno v:
Polymers, Vol 13, Iss 9, p 1443 (2021)
The swelling of a polymer membrane NafionTM in deionized water and isotonic NaCl and Ringer’s solutions was studied by photoluminescent spectroscopy. According to our previous studies, the surface of this membrane could be considered as a model for
Externí odkaz:
https://doaj.org/article/c0450f2d0b57436891aa5863efb009c9
Autor:
Barry W. Ninham, Polina N. Bolotskova, Sergey V. Gudkov, Yulchi Juraev, Mariya S. Kiryanova, Valeriy A. Kozlov, Roman S. Safronenkov, Alexey V. Shkirin, Elena V. Uspenskaya, Nikolai F. Bunkin
Publikováno v:
Polymers, Vol 12, Iss 12, p 2888 (2020)
When Nafion swells in water, colloidal particles are repelled from the polymer surface; this effect is called the formation exclusion zone (EZ), and the EZ size amounts to several hundred microns. However, still no one has investigated the EZ formati
Externí odkaz:
https://doaj.org/article/c83a7ab3806549f3b9408c9b613016af