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Membranes
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Development, Investigation and Application of Novel Polymer Membranes (Volume II)
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Development, Investigation and Application of Novel Polymer Membranes (Volume II)

A special issue of Membranes (ISSN 2077-0375). This special issue belongs to the section "Polymeric Membranes".

Deadline for manuscript submissions: closed (30 June 2023) | Viewed by 5807

Special Issue Editors

Dr. Anastasia Penkova

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Guest Editor
Department of Analytical Chemistry, Institute of Chemistry, St. Petersburg State University, 7/9 Universitetskaya nab., 199034 St. Petersburg, Russia
Interests: polymer membranes; nanocomposites; pervaporation; ultrafiltration; gas separation; nanofiltration; thermodynamics and kinetics of nonequilibrium processes; layer by layer; bulk modification; surface modification; mixed matrix membranes; plasma treatment; dehydration; water treatment
Special Issues, Collections and Topics in MDPI journals
Dr. Mariia Dmitrenko

E-Mail Website
Guest Editor
Department of Analytical Chemistry, Institute of Chemistry, St. Petersburg State University, 7/9 Universitetskaya nab., 199034 St. Petersburg, Russia
Interests: polymer membranes; nanocomposites; pervaporation; ultrafiltration; gas separation; nanofiltration; thermodynamics and kinetics of nonequilibrium processes; layer by layer; bulk modification; surface modification; mixed matrix membranes; plasma treatment; dehydration; water treatment
Special Issues, Collections and Topics in MDPI journals
Dr. Tatiana Plisko

E-Mail Website
Guest Editor
Institute of Physical Organic Chemistry, National Academy of Sciences of Belarus, Minsk, Belarus
Interests: polymer membrane; polymer membrane modification; membrane separation processes; ultrafiltration; pervaporation; nanofiltration; gas separation; thin film composite membranes; biodegradable polymers; smart membranes; smart polymers; mixed matrix membranes; polymer solutions
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Polymer membrane materials play a core role in membrane separation processes due to relative cheapness, ease of processing and the possibility to adjust performance by various preparation and modification methods. Polymer membranes with tailored properties are of significant fundamental and industrial interest (in various fields of industry such as petrochemical, medical, pharmaceutical, food and others) due to the possibility to develop sustainable membrane processes which are so necessary for modern society.  Special emphasis will be placed on but not limited to the following:

  • Membrane preparation;
  • Membrane characterization;
  • Bulk membrane modification;
  • Surface membrane modification;
  • Membrane transport properties in pressure-driven and diffusive membrane separation processes;
  • Membrane contactors;
  • Modeling/simulation of membrane processes.

Dr. Anastasia Penkova
Dr. Mariia Dmitrenko
Dr. Tatiana Plisko
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. Membranes is an international peer-reviewed open access monthly 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 2200 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.

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Further information on MDPI's Special Issue polices can be found here.

Published Papers (3 papers)

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Research

11 pages, 2688 KiB  
Article
Breathable Films with Self-Cleaning and Antibacterial Surfaces Based on TiO2-Functionalized PET Membranes
by Olga Alisiyonak, Anna Lavitskaya, Liudmila Khoroshko, Artem L. Kozlovskiy, Maxim Zdorovets, Ilya Korolkov, Maryia Yauseichuk, Egor Kaniukov and Alena Shumskaya
Membranes 2023, 13(8), 733; https://doi.org/10.3390/membranes13080733 - 15 Aug 2023
Cited by 4 | Viewed by 1358
Abstract
A promising approach that uses the sol–gel method to manufacture new breathable active films with self-cleaning and antibacterial surfaces is based on the PET membranes obtained via ion track technology with a pore density of 10–7 cm−2 and a pore diameter [...] Read more.
A promising approach that uses the sol–gel method to manufacture new breathable active films with self-cleaning and antibacterial surfaces is based on the PET membranes obtained via ion track technology with a pore density of 10–7 cm−2 and a pore diameter of about 500 ± 15 nm, coated with a layer of TiO2 anatase, with a thickness of up to 80 nm. The formation of the photocatalytically active TiO2 anatase phase was confirmed using Raman analysis. Coating the PET membrane with a layer of TiO2 increased the hydrophobicity of the system (CA increased from 64.2 to 92.4, and the antibacterial activity was evaluated using Escherichia coli and Staphylococcus aureus bacteria with the logarithmic reduction factors of 3.34 and 4.24, respectively). Full article
(This article belongs to the Special Issue Development, Investigation and Application of Novel Polymer Membranes (Volume II))
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18 pages, 12808 KiB  
Article
Membranes Based on PTMSP/PVTMS Blends for Membrane Contactor Applications
by Denis Kalmykov, Alexey Balynin, Alexey Yushkin, Evgenia Grushevenko, Stepan Sokolov, Alexander Malakhov, Alexey Volkov and Stepan Bazhenov
Membranes 2022, 12(11), 1160; https://doi.org/10.3390/membranes12111160 - 17 Nov 2022
Cited by 7 | Viewed by 1983
Abstract
In this work, perspective polymeric materials were developed for membrane contactor applications, e.g., for the dissolved oxygen removal from amine CO2 capture solvents. Several polymeric blends based on poly[1-trimethylsilyl-1-propyne] (PTMSP) and poly[vinyltrimethylsilane] (PVTMS) were studied. The gas and water vapor sorption and [...] Read more.
In this work, perspective polymeric materials were developed for membrane contactor applications, e.g., for the dissolved oxygen removal from amine CO2 capture solvents. Several polymeric blends based on poly[1-trimethylsilyl-1-propyne] (PTMSP) and poly[vinyltrimethylsilane] (PVTMS) were studied. The gas and water vapor sorption and permeability coefficients for the PTMSP/PVTMS blend membranes at different PVTMS contents (0–100%) were obtained under temperatures of 30 and 60 °C for the first time. As the PVTMS content increases, the O2 and CO2 permeabilities decrease by 160 and 195 times at 30 °C, respectively. The fractional accessible volume of the polymer blends decreases accordingly. The transport of the CO2 capture solvent vapors through the PTMSP/PVTMS blend membranes were determined in thermo-pervaporation (TPV) mode using aqueous monoethanolamine (30%), N-methyldiethanolamine (40%), and 2-amino-2-methyl-1-propanol (30%) solutions as model amine solvents at 60 °C. The membranes demonstrated high pervaporation separation factors with respect to water, resulting in low amine losses. A joint analysis of the gas permeabilities and aqueous alkanolamine TPV data allowed us to conclude that the polymer blend composition of PTMSP/PVTMS 70/30 provides an optimal combination of a sufficiently high oxygen permeability and the pervaporation separation factor at a temperature of 60 °C. Full article
(This article belongs to the Special Issue Development, Investigation and Application of Novel Polymer Membranes (Volume II))
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17 pages, 4163 KiB  
Article
Effect of Organo-Silanes Structure on the Properties of Silane-Crosslinked Membranes Based on Cardo Polybenzimidazole PBI-O-PhT
by Anna A. Lysova, Igor I. Ponomarev, Kirill M. Skupov, Elizaveta S. Vtyurina, Kirill A. Lysov and Andrey B. Yaroslavtsev
Membranes 2022, 12(11), 1078; https://doi.org/10.3390/membranes12111078 - 31 Oct 2022
Cited by 7 | Viewed by 1781
Abstract
Polybenzimidazoles (PBI) doped with phosphoric acid (PA) are promising electrolytes for medium temperature fuel cells. Their significant disadvantage is a partial or complete loss of mechanical properties and an increase in hydrogen permeability at elevated temperatures. Covalent silanol crosslinking is one possible way [...] Read more.
Polybenzimidazoles (PBI) doped with phosphoric acid (PA) are promising electrolytes for medium temperature fuel cells. Their significant disadvantage is a partial or complete loss of mechanical properties and an increase in hydrogen permeability at elevated temperatures. Covalent silanol crosslinking is one possible way to stabilize PBI membranes in the presence of PA. Three organo-substituted silanes, namely (3-Bromopropyl)trimethoxysilane (SiBr), trimethoxy [2-(7-oxabicyclo [4.1.0]hept-3-yl)ethyl]silane (Si-biC) and (3-Glycidyloxypropyl)trimethoxysilane (KH 560), were used as covalent crosslinkers of PBI-O-PhT in order to determine the effect of the silane structure and crosslinking degree on membrane properties. The crosslinking degree was 1–50%. All crosslinked membranes were characterized by impedance and IR-spectroscopy. The mechanical properties, morphology, stability and hydrogen permeability of the membranes were determined. In the case of silanes with linear substituents (SiBr, KH 560), a denser structure is formed, which is characterized by greater oxidative stability and lower hydrogen permeability in comparison to the silane with a bulk group. All the crosslinked membranes have a higher mechanical strength compared with the initial PBI-O-PhT membrane both before and after doping with PA. Despite the hardening of the polymer matrix of the membranes, their proton conductivity changes insignificantly. It was shown that cross-linked membranes can be used in fuel cells. Full article
(This article belongs to the Special Issue Development, Investigation and Application of Novel Polymer Membranes (Volume II))
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