Zobrazeno 1 - 10
of 55
pro vyhledávání: '"Vladimír Hynek"'
Autor:
Ondřej Vopička, Petr Číhal, Martina Klepić, Jan Crha, Vladimír Hynek, Karel Trtík, Pierre Boillat, Pavel Trtik
Publikováno v:
PLoS ONE, Vol 15, Iss 9, p e0238470 (2020)
We report a powerful method for capturing the time-resolved concentration profiles, liquid swelling and surface phenomena during the absorption of methane (CH4) in still liquid ethanol (C2D6O) and n-decane (n-C10D22) and at high spatial resolution (p
Externí odkaz:
https://doaj.org/article/134c96785cff41d5b5afd77d74591d31
Autor:
Karel Trtík, Pavel Trtik, Petr Číhal, Jan Crha, Martina Klepić, Pierre Boillat, Ondřej Vopička, Vladimír Hynek
Publikováno v:
PLoS ONE
PLoS ONE, Vol 15, Iss 9, p e0238470 (2020)
PLoS ONE, Vol 15, Iss 9, p e0238470 (2020)
We report a powerful method for capturing the time-resolved concentration profiles, liquid swelling and surface phenomena during the absorption of methane (CH4) in still liquid ethanol (C2D6O) and n-decane (n-C10D22) and at high spatial resolution (p
Autor:
Pavel N. Yakushev, Evgenia Minko, Vladimir A. Bershtein, Kryštof Pilnáček, Petr Sysel, Miroslav Zgazar, Milan Šípek, Karel Friess, Vladimír Hynek, L. M. Egorova, Ondrej Vopicka
Publikováno v:
Journal of Macromolecular Science, Part B. 52:632-649
A series of organic–inorganic hybrid materials were prepared from a hyperbranched polyimide precursor (hyperbranched polyamic acid), tetramethoxysilane, and/or 3-glycidyloxypropyl-trimethoxysilane via a sol-gel process. The hyperbranched polyimide-
Autor:
Kryštof Pilnáček, Karel Friess, Ondrej Vopicka, Evgenia Minko, Petr Sysel, Vladimír Hynek, Milan Šípek, Michal Hauf
Publikováno v:
Desalination and Water Treatment. 34:211-215
The novel mixed matrix membranes were prepared from the hyperbranched polyimide based on 4,4´,4´´-triaminotriphenylmethane and mesoporous silica MCM-41 (up to 16 wt.%). The permeability coefficients of hydrogen, carbon dioxide, oxygen, nitrogen an
Autor:
Miroslav Zgažar, Karel Friess, Ondřej Vopička, Wojciech Kujawski, Maciej W. Kujawski, Vladimír Hynek, Milan Šípek
Publikováno v:
Separation and Purification Technology. 80:418-427
The experimental study of transport properties of mixed matrix membranes (MMMs) based on PEBA-4033 with two types of zeolites is reported. Gas (CO2, O2, N2) and vapor (benzene, toluene, methanol, water) permeation measurements were performed using th
Autor:
Milan Šípek, Jeroen Dewulf, Maarten Dingemans, Karel Friess, H. Van Langenhove, Ondřej Vopička, Vladimír Hynek
Publikováno v:
Separation Science and Technology. 45:1260-1264
In this paper, two methods for measuring the equilibrium vapor sorption in polymers are critically compared and data on sorption of toluene, p-xylene, hexane, cyclohexane, and heptane in low density polyethylene are reported. The vapor phase calibrat
Publikováno v:
Journal of Membrane Science. 350:217-225
We propose a method of measuring the transient diffusion of vapor mixtures through flat dense membranes. The experimental setup consists of a self-developed differential permeation cell and a real-time analyzer to monitor the permeate–sweep gas mix
Autor:
Miroslav Zgažar, Karel Friess, M. Kuboňová-Hendrichová, Ondřej Vopička, Vladimír Hynek, Milan Šípek
Publikováno v:
Desalination and Water Treatment. 14:47-51
A mass transport of organic compounds (benzene, hexane, cyclohexane and methanol) and their binary mixtures at wide activity range through dense semicrystalline low density polyethylene membranes is presented. Single and binary vapour permeation meas
Autor:
Petr Sysel, Michal Hauf, Kryštof Pilnáček, Ondřej Vopička, Karel Friess, Vladimír Hynek, Milan Šípek, Evgenia Minko
Publikováno v:
Desalination and Water Treatment. 14:165-169
The non-porous, flat membranes were prepared from the novel hyperbranched polyimide based on 4,4’,4”-triaminotriphenylmethane (MTA) and 4,4’-oxydiphthalic anhydride (ODPA) and also from the linear polyimide (LPI) based on 4,4’-methylenedianil
Publikováno v:
European Polymer Journal. 46:123-128
This paper is focused on modeling of sorption and desorption kinetics as well as on equilibrium butan-1-ol vapor sorption in blended poly(dimethylsiloxane)–benzyl-3-butylimidazolium tetrafluoroborate membranes. Based on the generalized Fick’s sec