Membranes and Membrane Technologies, volume 4, issue 1, pages 39-47
On the Influence of Solvent and Ultrasonic Treatment on Properties of Cast Nafion® Membranes
Publication type: Journal Article
Publication date: 2022-02-21
Journal:
Membranes and Membrane Technologies
Quartile SCImago
Q3
Quartile WOS
—
Impact factor: 1.1
ISSN: 25177516, 25177524
Applied Mathematics
Abstract
The effect of the nature of the solvent on the properties of Nafion membranes obtained from them by casting procedure has been discussed on examples of polar protic (water) and aprotic (N,N-dimethylformamide (DMF) and N,N-dimethylacetamide (DMA)) liquids. The water uptake and proton conductivity of Nafion membranes obtained from an aqueous dispersion are higher than those obtained from dispersions in DMF and DMA; however, their mechanical properties and stability are usually low. Short time ultrasonic (US) treatment of Nafion dispersions in DMF and DMA results in increase in conductivity of membranes and decrease in its activation energy. This is due to the improvement of the membrane microstructure as a result of the deagglomeration of macromolecules. The presence of water in Nafion dispersions upon US treatment leads to increase in their viscosity and loss of a large number of functional sulfo groups. As a result, the conductivity of the membranes decreases. To level these processes, it is advisable to use aprotic liquids or mixtures with a low water content for Nafion polymer. An explanation of the influence of the nature of the dispersing liquid and US treatment on the properties of Nafion membranes from the point of view of the morphology of the polymer in the dispersion and in the membrane has been proposed.
Top-30
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1 publication, 14.29%
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Russian Chemical Reviews
1 publication, 14.29%
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Multidisciplinary Digital Publishing Institute (MDPI)
6 publications, 85.71%
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Autonomous Non-profit Organization Editorial Board of the journal Uspekhi Khimii
1 publication, 14.29%
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- We do not take into account publications without a DOI.
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Safronova E. Y. et al. On the Influence of Solvent and Ultrasonic Treatment on Properties of Cast Nafion® Membranes // Membranes and Membrane Technologies. 2022. Vol. 4. No. 1. pp. 39-47.
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Safronova E. Y., Voropaeva D. Yu., Novikova S. A., Yaroslavtsev A. B. On the Influence of Solvent and Ultrasonic Treatment on Properties of Cast Nafion® Membranes // Membranes and Membrane Technologies. 2022. Vol. 4. No. 1. pp. 39-47.
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TY - JOUR
DO - 10.1134/S2517751622010073
UR - https://link.springer.com/10.1134/S2517751622010073
TI - On the Influence of Solvent and Ultrasonic Treatment on Properties of Cast Nafion® Membranes
T2 - Membranes and Membrane Technologies
AU - Safronova, E. Yu.
AU - Novikova, S. A.
AU - Yaroslavtsev, A. B.
AU - Voropaeva, D Yu
PY - 2022
DA - 2022/02/21 00:00:00
PB - Pleiades Publishing
SP - 39-47
IS - 1
VL - 4
SN - 2517-7516
SN - 2517-7524
ER -
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@article{2022_Safronova,
author = {E. Yu. Safronova and S. A. Novikova and A. B. Yaroslavtsev and D Yu Voropaeva},
title = {On the Influence of Solvent and Ultrasonic Treatment on Properties of Cast Nafion® Membranes},
journal = {Membranes and Membrane Technologies},
year = {2022},
volume = {4},
publisher = {Pleiades Publishing},
month = {feb},
url = {https://link.springer.com/10.1134/S2517751622010073},
number = {1},
pages = {39--47},
doi = {10.1134/S2517751622010073}
}
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Safronova, E. Yu., et al. “On the Influence of Solvent and Ultrasonic Treatment on Properties of Cast Nafion® Membranes.” Membranes and Membrane Technologies, vol. 4, no. 1, Feb. 2022, pp. 39-47. https://link.springer.com/10.1134/S2517751622010073.