Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Copolyimide Brushes as a Component of a Hybrid Poly(phenylene Oxide) Membrane for Controlling Gas Separation: Effect of Water, Methanol, and Hexane Vapors. / Тян, Надежда Сергеевна; Пулялина, Александра Юрьевна; Файков, Илья Ильич; Гофман, Иосиф Владимирович; Золотовский, Константин Алексеевич; Полоцкая, Галина Андреевна.
в: Membranes, Том 13, № 9, 805, 20.09.2023.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Copolyimide Brushes as a Component of a Hybrid Poly(phenylene Oxide) Membrane for Controlling Gas Separation: Effect of Water, Methanol, and Hexane Vapors
AU - Тян, Надежда Сергеевна
AU - Пулялина, Александра Юрьевна
AU - Файков, Илья Ильич
AU - Гофман, Иосиф Владимирович
AU - Золотовский, Константин Алексеевич
AU - Полоцкая, Галина Андреевна
PY - 2023/9/20
Y1 - 2023/9/20
N2 - 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 pristine PPO membrane. These membranes in the form of dense nonporous films were further examined by atomic force microscopy (AFM) and scanning electron microscopy (SEM), as well as by measuring their mechanical and gas transport properties. A gas separation study of the membranes in a dry state and the membranes saturated with water, methanol, and hexane vapors was performed to estimate the effect of each vapor on the H 2, CO 2, N 2 permeability and selectivity in the separation of H 2/N 2 and CO 2/N 2 pairs. In general, saturation with water, methanol, and hexane vapors caused a decrease in the gas permeability of both membranes. The hybrid membrane containing copolyimide brushes demonstrated enhanced selectivity in the separation of H 2/N 2 and CO 2/N 2 pairs. It was found that a special effect of the vapors used for membrane saturation is associated with their molar volume. The solubility and diffusion coefficients of N 2 and CO 2 were obtained by Grand Canonical Monte Carlo (GCMC) and molecular dynamics (MD) simulations.
AB - 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 pristine PPO membrane. These membranes in the form of dense nonporous films were further examined by atomic force microscopy (AFM) and scanning electron microscopy (SEM), as well as by measuring their mechanical and gas transport properties. A gas separation study of the membranes in a dry state and the membranes saturated with water, methanol, and hexane vapors was performed to estimate the effect of each vapor on the H 2, CO 2, N 2 permeability and selectivity in the separation of H 2/N 2 and CO 2/N 2 pairs. In general, saturation with water, methanol, and hexane vapors caused a decrease in the gas permeability of both membranes. The hybrid membrane containing copolyimide brushes demonstrated enhanced selectivity in the separation of H 2/N 2 and CO 2/N 2 pairs. It was found that a special effect of the vapors used for membrane saturation is associated with their molar volume. The solubility and diffusion coefficients of N 2 and CO 2 were obtained by Grand Canonical Monte Carlo (GCMC) and molecular dynamics (MD) simulations.
KW - complex modifier
KW - gas separation
KW - mixed matrix membrane
KW - poly(m-phenylene isophthalamide)
KW - vapor saturation
UR - https://www.mdpi.com/2077-0375/13/9/805
UR - https://www.mendeley.com/catalogue/468be853-c1ef-337b-83d6-b9b7db0354e7/
U2 - 10.3390/membranes13090805
DO - 10.3390/membranes13090805
M3 - Article
C2 - 37755227
VL - 13
JO - Membranes
JF - Membranes
SN - 2077-0375
IS - 9
M1 - 805
ER -
ID: 113494980