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Polymers
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Polymers for Membrane Separation: Properties and Applications
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Polymers for Membrane Separation: Properties and Applications

A special issue of Polymers (ISSN 2073-4360). This special issue belongs to the section "Smart and Functional Polymers".

Deadline for manuscript submissions: closed (5 November 2023) | Viewed by 7436

Special Issue Editors

Dr. Ilya L. Borisov

E-Mail Website
Guest Editor
A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Lenynsky prospect 29, Moscow 119991, Russia
Interests: polymeric materials; polysiloxanes; polysulfone; highly permeable glassy polymers; membrane formation; vacuum pervaporation; thermopervaporation; recovery of alcohols from fermentation broth; gas separation
Special Issues, Collections and Topics in MDPI journals
Dr. Evgeniia Grushevenko

E-Mail Website
Guest Editor
A.V. Topchiev Institute of Petrochemical Synthesis RAS, Leninsky pr., 29, Moscow 119991, Russia
Interests: polymeric membrane formation; composite membrane; silicone rubber; polymer modification; membrane gas separation; hydrocarbon separation; pervaporation; wastewater treatment; electrodialysis; heat stable salt removal

Special Issue Information

Dear Colleagues，

This Special Issue on “Polymers for Membrane Separation: Properties and Applications” is devoted to the dissemination of high-quality original research articles or comprehensive reviews on cutting-edge developments in this interdisciplinary field. Membrane separation technology is very closely related to the materials science of polymeric materials. The increasing interest in polymeric materials may be due to their synthesis and membrane formation, which is often relatively low cost and easy, as well as to the possibility to obtain a wide range of properties and functionalities for separation applications. Today, it is not only the study of the correlation between polymer structure and its transport properties that are of great interest, but also specific examples of practical implementation of polymeric membranes.

Dr. Evgeniia Grushevenko
Dr. Ilya L. Borisov
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Polymers is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • material characterization
  • polymeric-based membrane
  • structure–properties relationship
  • porous membrane
  • nonporous membrane
  • membrane separation processes
  • functional membranes

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Published Papers (3 papers)

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Research

14 pages, 4296 KiB  
Article
The Effect of Stereoregularity and Adding Irganox 1076 on the Physical Aging Behavior of Poly(1-trimetylsilyl-1-propyne)
by Vladimir Makrushin, Anton Kossov, Viktoriya Polevaya, Ivan Levin, Denis Bezgin, Dariya Syrtsova and Samira Matson
Polymers 2023, 15(9), 2172; https://doi.org/10.3390/polym15092172 - 3 May 2023
Cited by 3 | Viewed by 1587
Abstract
The effect of the stereoregularity of poly(1-trimethylsilyl-1-propyne) [PTMSP] (cis-content from 50 to 90%) on physical aging was investigated by measurement of the gas permeability. Films from pure PTMSP as well as those with the addition of the antioxidant Irganox 1076 were [...] Read more.
The effect of the stereoregularity of poly(1-trimethylsilyl-1-propyne) [PTMSP] (cis-content from 50 to 90%) on physical aging was investigated by measurement of the gas permeability. Films from pure PTMSP as well as those with the addition of the antioxidant Irganox 1076 were exposed to the air. The permeability of pure PTMSP films increases with an increase in cis-stereoregularity and correlates with an increase in interchain distances (according to X-ray analysis). For pure PTMSP films, the most significant aging (up to 50% of permeability drop) was observed for polymers with mixed microstructure, and the slowest aging (10–30% of permeability drop) was observed for polymers with cis-regular structure. For PTMSP films with added Irganox 1076, some decrease in permeability with time is also observed. The addition of Irganox 1076 to PTMSP in mixed as well as cis-enriched configurations visibly slows down aging. In the case of cis-regular PTMSP with a slow aging rate, the introduction of an antioxidant does not provide any advantages. The high stability of cis-regular PTMSP demonstrates the possibility of obtaining more stable membrane materials with the highest equilibrium state of the polymer selective layer prepared by casting solution. Full article
(This article belongs to the Special Issue Polymers for Membrane Separation: Properties and Applications)
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27 pages, 11518 KiB  
Article
Novel Mixed Matrix Membranes Based on Poly(vinylidene fluoride): Development, Characterization, Modeling
by Anna Kuzminova, Mariia Dmitrenko, Andrey Zolotarev, Denis Markelov, Andrei Komolkin, Roman Dubovenko, Artem Selyutin, Jiangjiexing Wu, Rongxin Su and Anastasia Penkova
Polymers 2023, 15(5), 1222; https://doi.org/10.3390/polym15051222 - 28 Feb 2023
Cited by 5 | Viewed by 2595
Abstract
Membrane technology is an actively developing area of modern societies; with the help of high-performance membranes, it is possible to separate various mixtures for many industrial tasks. The objective of this study was to develop novel effective membranes based on poly(vinylidene fluoride) (PVDF) [...] Read more.
Membrane technology is an actively developing area of modern societies; with the help of high-performance membranes, it is possible to separate various mixtures for many industrial tasks. The objective of this study was to develop novel effective membranes based on poly(vinylidene fluoride) (PVDF) by its modification with various nanoparticles (TiO2, Ag-TiO2, GO-TiO2, and MWCNT/TiO2). Two types of membranes have been developed: dense membranes for pervaporation and porous membranes for ultrafiltration. The optimal content of nanoparticles in the PVDF matrix was selected: 0.3 wt% for porous membranes and 0.5 wt% for dense ones. The structural and physicochemical properties of the developed membranes were studied using FTIR spectroscopy, thermogravimetric analysis, scanning electron and atomic force microscopies, and measuring of contact angles. In addition, the molecular dynamics simulation of PVDF and the TiO2 system was applied. The transport properties and cleaning ability under ultraviolet irradiation of porous membranes were studied by ultrafiltration of a bovine serum albumin solution. The transport properties of dense membranes were tested in pervaporation separation of a water/isopropanol mixture. It was found that membranes with the optimal transport properties are as follows: the dense membrane modified with 0.5 wt% GO-TiO2 and the porous membrane modified with 0.3 wt% MWCNT/TiO2 and Ag-TiO2. Full article
(This article belongs to the Special Issue Polymers for Membrane Separation: Properties and Applications)
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18 pages, 3274 KiB  
Article
Hydrophobic Ag-Containing Polyoctylmethylsiloxane-Based Membranes for Ethylene/Ethane Separation in Gas-Liquid Membrane Contactor
by Evgenia Grushevenko, Alexey Balynin, Ruslan Ashimov, Stepan Sokolov, Sergey Legkov, Galina Bondarenko, Ilya Borisov, Morteza Sadeghi, Stepan Bazhenov and Alexey Volkov
Polymers 2022, 14(8), 1625; https://doi.org/10.3390/polym14081625 - 18 Apr 2022
Cited by 4 | Viewed by 2380
Abstract
The application of gas-liquid membrane contactors for ethane-ethylene separation seems to offer a good alternative to conventional energy-intensive processes. This work aims to develop new hydrophobic composite membranes with active ethylene carriers and to demonstrate their potential for ethylene/ethane separation in gas-liquid membrane [...] Read more.
The application of gas-liquid membrane contactors for ethane-ethylene separation seems to offer a good alternative to conventional energy-intensive processes. This work aims to develop new hydrophobic composite membranes with active ethylene carriers and to demonstrate their potential for ethylene/ethane separation in gas-liquid membrane contactors. For the first time, hybrid membrane materials based on polyoctylmethylsiloxane (POMS) and silver tetrafluoroborate, with a Si:Ag ratio of 10:0.11 and 10:2.2, have been obtained. This technique allowed us to obtain POMS-based membranes with silver nanoparticles (8 nm), which are dispersed in the polymer matrix. The dispersion of silver in the POMS matrix is confirmed by the data IR-spectroscopy, wide-angle X-ray diffraction, and X-ray fluorescence analyses. These membranes combine the hydrophobicity of POMS and the selectivity of silver ions toward ethylene. It was shown that ethylene sorption at 600 mbar rises from 0.89 cm3(STP)/g to 3.212 cm3(STP)/g with an increase of Ag content in POMS from 0 to 9 wt%. Moreover, the membrane acquires an increased sorption affinity for ethylene. The ethylene/ethane sorption selectivity of POMS is 0.64; for the membrane with 9 wt% silver nanoparticles, the ethylene/ethane sorption selectivity was 2.46. Based on the hybrid material, POMS-Ag, composite membranes were developed on a polyvinylidene fluoride (PVDF) porous support, with a selective layer thickness of 5–10 µm. The transport properties of the membranes were studied by separating a binary mixture of ethylene/ethane at 20/80% vol. It has been shown that the addition of silver nanoparticles to the POMS matrix leads to a decrease in the ethylene permeability, but ethylene/ethane selectivity increases from 0.9 (POMS) to 1.3 (9 wt% Ag). It was noted that when the POMS-Ag membrane is exposed to the gas mixture flow for 3 h, the selectivity increases to 1.3 (0.5 wt% Ag) and 2.3 (9 wt% Ag) due to an increase in ethylene permeability. Testing of the obtained membranes in a gas-liquid contactor showed that the introduction of silver into the POMS matrix makes it possible to intensify the process of ethylene mass transfer by more than 1.5 times. Full article
(This article belongs to the Special Issue Polymers for Membrane Separation: Properties and Applications)
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