Zobrazeno 1 - 10
of 48
pro vyhledávání: '"Alexandra Pulyalina"'
Autor:
Alexandra Pulyalina, Konstantin Grekov, Vera Tataurova, Anna Senchukova, Alexander Novikov, Ilya Faykov, Galina Polotskaya
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-12 (2022)
Abstract Ultrafiltration (UF) as a widely used industrial separation method with optimal selection of membrane materials can be applied to extract rare earth metals from dilute solutions formed during the processing of electronic waste by hydrometall
Externí odkaz:
https://doaj.org/article/6c97a8375a8a48878542fbc245176b7c
Autor:
Nadezhda Tian, Alexandra Pulyalina, Ilya Faykov, Iosif Gofman, Konstantin Zolotovsky, Galina Polotskaya
Publikováno v:
Membranes, Vol 13, Iss 9, p 805 (2023)
The effect of water, methanol, and hexane vapors on gas permeability was studied in a hybrid membrane containing 5 wt% copolyimide brushes with poly(methyl methacrylate) side chains (PI-g-PMMA) in a poly(phenylene oxide) (PPO) matrix, and in a pristi
Externí odkaz:
https://doaj.org/article/bee8b9502a084c599a7438bfcd45002f
Autor:
Ilya Faykov, Galina Polotskaya, Ivan Kuryndin, Zoolsho Zoolshoev, Natalia Saprykina, Nadezhda Tian, Angelina Sorokina, Alexandra Pulyalina
Publikováno v:
Membranes, Vol 13, Iss 5, p 516 (2023)
A novel hybrid membrane was developed on the basis of poly(m-phenylene isophthalamide) (PA) by introducing an original complex modifier into the polymer; this modifier consisted of equal amounts of heteroarm star macromolecules with a fullerene C60 c
Externí odkaz:
https://doaj.org/article/cb8a0962bf30486ea8f4eb54d74302f6
Autor:
Galina Polotskaya, Nadezhda Tian, Ilya Faykov, Mikhail Goikhman, Irina Podeshvo, Nairi Loretsyan, Iosif Gofman, Konstantin Zolotovsky, Alexandra Pulyalina
Publikováno v:
Membranes, Vol 13, Iss 2, p 160 (2023)
Poly(2,2′-biquinoline-6,6′-dicarbohydrazide)-co-(bistrimelliteimide)methylene-bisanthranylide (PHI) and its metal–polymer complex PHI-Cu(I) containing several types of functional groups (hydrazide, carboxyl, amide, and imide fragments) were syn
Externí odkaz:
https://doaj.org/article/a5e0d37678254fd58c7b1c6a9d1a3b12
Autor:
Alexandra Pulyalina, Valeriia Rostovtseva, Ilya Faykov, Natalia Saprykina, Alexandra Golikova, Anna Fedorova, Galina Polotskaya, Alexander Novikov
Publikováno v:
International Journal of Molecular Sciences, Vol 24, Iss 1, p 715 (2022)
This study aims to improve properties of Ultem® polyetherimide (PEI) by incorporating up to 2 wt% additives of the perovskite oxide La0.85Yb0.15AlO3 (LYA). The structure of dense PEI/LYA films was characterized by X-ray diffraction (XRD) and scannin
Externí odkaz:
https://doaj.org/article/c97acdf357a141a6bb489570f9721dc6
Autor:
Alexandra Pulyalina, Nadezhda Tian, Anna Senchukova, Ilya Faykov, Maria Ryabikova, Alexander Novikov, Natalia Saprykina, Galina Polotskaya
Publikováno v:
Membranes, Vol 12, Iss 5, p 489 (2022)
In this study, novel composites were produced by blending partially cyclized polyacrylonitrile (cPAN) and poly(amide-imide) (PAI) in N-methylpyrrolidone in order to fabricate asymmetric membranes via phase inversion method. The compatibility of PAI a
Externí odkaz:
https://doaj.org/article/cb63ebb5a3d747bab0081168e36b8c72
Publikováno v:
Membranes, Vol 12, Iss 3, p 312 (2022)
Ethylene glycol (EG) is an essential reagent in the chemical industry including polyester and antifreeze manufacture. In view of the constantly expanding field of EG applications, the search for and implementation of novel economical and environmenta
Externí odkaz:
https://doaj.org/article/bc41d421221647fe8b35f6ece4e58d54
Autor:
Valeriia Rostovtseva, Alexandra Pulyalina, Roman Dubovenko, Ilya Faykov, Kseniya Subbotina, Natalia Saprykina, Alexander Novikov, Ludmila Vinogradova, Galina Polotskaya
Publikováno v:
Polymers, Vol 13, Iss 11, p 1811 (2021)
Modification of polymer matrix by hybrid fillers is a promising way to produce membranes with excellent separation efficiency due to variations in membrane structure. High-performance membranes for the pervaporation dehydration were produced by modif
Externí odkaz:
https://doaj.org/article/fbc7534344504d0cbda0c7865afd50fa
Autor:
Alexandra Pulyalina, Valeriia Rostovtseva, Ilya Faykov, Maksim Tataurov, Roman Dubovenko, Sergey Shugurov
Publikováno v:
Molecules, Vol 26, Iss 4, p 990 (2021)
Novel polymer composites based on polyamide–imide Torlon and deep eutectic solvent (DES) were fabricated and adapted for separation processes. DES composed of zinc chloride and acetamide in a ratio of 1:3 M was first chosen as a Torlon-modifier due
Externí odkaz:
https://doaj.org/article/979740af23ca46399f2b4b02cb952864
Publikováno v:
Polymers, Vol 12, Iss 10, p 2218 (2020)
Methyl Tert-butyl Ether (MTBE) remains the most popular fuel additive to improve fuel performance and reduce the emission of hazardous components. The most common method of MTBE production is a catalytic synthesis with a great excess of methanol to i
Externí odkaz:
https://doaj.org/article/00aa1dc38e7c4a0785fb98dfa2ce9cc3