Influence of the Molecular Polyimide Brush on the Gas Separation Properties of Polyphenylene Oxide
- Authors: Tyan N.S.1, Polotskaya G.A.1, Meleshko T.K.1, Yakimansky A.V.1, Pientka Z.2
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Affiliations:
- Institute of Macromolecular Compounds
- Institute of Macromolecular Chemistry
- Issue: Vol 92, No 3 (2019)
- Pages: 360-366
- Section: Macromolecular Compounds and Polymeric Materials
- URL: https://journals.rcsi.science/1070-4272/article/view/216391
- DOI: https://doi.org/10.1134/S1070427219030066
- ID: 216391
Cite item
Abstract
A new hybrid gas separation membrane was prepared from poly(2,6-dimethyl-1,4-phenylene oxide) modified with graft copolyimide with side poly(methyl methacrylate) chains. The changes in the membrane structure on introducing up to 15 wt % modifier were evaluated by atomic force microscopy and density measurements. The microphase separation in modified polyphenylene oxide films was demonstrated. Introduction of graft copolyimide leads to an increase in the density of the hybrid films. The gas transport properties of the membranes were evaluated for H2, CO2, O2, O4, and N2. Introduction of up to 10 wt % modifier does not noticeably alter the permeability of the hybrid membranes to all the gases but increases the selectivity in gas separation.
Keywords
About the authors
N. S. Tyan
Institute of Macromolecular Compounds
Author for correspondence.
Email: tyan-nadezhda91@yandex.ru
Russian Federation, St. Petersburg, 199004
G. A. Polotskaya
Institute of Macromolecular Compounds
Email: tyan-nadezhda91@yandex.ru
Russian Federation, St. Petersburg, 199004
T. K. Meleshko
Institute of Macromolecular Compounds
Email: tyan-nadezhda91@yandex.ru
Russian Federation, St. Petersburg, 199004
A. V. Yakimansky
Institute of Macromolecular Compounds
Email: tyan-nadezhda91@yandex.ru
Russian Federation, St. Petersburg, 199004
Z. Pientka
Institute of Macromolecular Chemistry
Email: tyan-nadezhda91@yandex.ru
Czech Republic, Prague
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