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Membranes
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Porous Polymers and Polymeric Membranes
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Porous Polymers and Polymeric Membranes

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

Deadline for manuscript submissions: closed (20 May 2022) | Viewed by 8135

Special Issue Editors

Dr. Olga Arzhakova

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Guest Editor
Polymer Department, Faculty of Chemistry, M. V. Lomonosov Moscow State University, Leninskie gory 1/40, 119991 Moscow, Russia
Interests: porous polymers; mesoporous materials; nanocomposite materials; morphology and structure of polymers; polymeric membranes; membrane performance and selectivity; smart materials; hydrophilic/hydrophobic polymers; polymer films and fibers; sensors
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Konstantinos Beltsios

E-Mail Website
Guest Editor
Materials Sector, School of Chemical Engineering, NTUA, Zographou Campus, 15780 Athens, Greece
Interests: polymeric phase inversion membranes; ceramic porous membranes; carbon membranes
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The Special Issue “Porous Polymers and Polymeric Membranes” is focused on the challenging subject of modern science concerning the controlled preparation of porous polymeric materials with the desired morphology and targeted performance. This issue presents a broad scope of general strategies allowing the preparation of porous polymeric materials and membranes and the correlation between the preparation conditions and resultant structure of polymeric materials at different levels (from nano to macro). This subject invites the use of diverse physicochemical methods for the characterization of the porous materials (pore size, pore size distribution, morphology of pores, stability, etc.) and their performance as efficient membranes for various purposes. This issue also addresses the use of diverse additives incorporated into porous membrane matrixes for the preparation of high-performance membrane materials with desired functional properties, including selectivity, gas permeability, controlled hydrophilic/hydrophobic balance, pervaporation, etc.

This Special Issue on “Porous Polymers and Polymeric Membranes” is for researchers and technologists interested in all aspects of membrane science, technology, and applications of membrane materials for reverse osmosis, ultrafiltration, pervaporation, catalysis, gas and liquid separation, etc. Both original research articles and reviews about membrane science and preparation of porous and functional membrane materials as well as the benefits of membrane materials in different applications are welcomed. Specific topics of interests include:

  • Preparation of porous polymeric materials.
  • Structure and morphology of polymeric membrane materials.
  • Correlation between the preparation and structure of membrane materials.
  • Characterization of membrane materials by diverse physicochemical methods (AFM, SEM, TEM, DSC, X-ray analysis, permporometry, EPR, FESEM, NMR, etc.).
  • Performance of membrane materials (gas permeability, liquid permeability, selectivity, stability, ecological aspects, etc.).
  • Preparation of composite/nanocomposite membrane materials with functional additives and their characterization.
  • Membrane processes.
  • Computational studies to describe transport through porous polymeric membranes.
  • Application of porous membrane materials (food packing, breathable materials, selective membranes, catalytic membranes, reverse osmosis, ultrafiltration, pervaporation, photoactive materials, sensors, etc.).

Dr. Olga Arzhakova
Prof. Dr. Konstantinos Beltsios
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 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

  • porous polymeric materials
  • polymeric membrane
  • characterization of membrane materials
  • reverse osmosis
  • ultrafiltration
  • pervaporation
  • catalysis
  • gas and liquid separation

Published Papers (3 papers)

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Research

10 pages, 2253 KiB  
Article
Controlled Thin Polydimethylsiloxane Membrane with Small and Large Micropores for Enhanced Attachment and Detachment of the Cell Sheet
by Yeongseok Jang, Hyojae Kim, Jinmu Jung and Jonghyun Oh
Membranes 2022, 12(7), 688; https://doi.org/10.3390/membranes12070688 - 3 Jul 2022
Viewed by 2216
Abstract
Polydimethylsiloxane (PDMS) membranes can allow the precise control of well-defined micropore generation. A PDMS solution was mixed with a Rushton impeller to generate a large number of microbubbles. The mixed solution was spin-coated on silicon wafer to control the membrane thickness. The microbubbles [...] Read more.
Polydimethylsiloxane (PDMS) membranes can allow the precise control of well-defined micropore generation. A PDMS solution was mixed with a Rushton impeller to generate a large number of microbubbles. The mixed solution was spin-coated on silicon wafer to control the membrane thickness. The microbubbles caused the generation of a large number of small and large micropores in the PDMS membranes with decreased membrane thickness. The morphology of the thinner porous PDMS membrane induced higher values of roughness, Young’s modulus, contact angle, and air permeability. At day 7, the viability of cells on the porous PDMS membranes fabricated at the spin-coating speed of 5000 rpm was the highest (more than 98%) due to their internal networking structure and surface properties. These characteristics closely correlated with the increased formation of actin stress fibers and migration of keratinocyte cells, resulting in enhanced physical connection of actin stress fibers of neighboring cells throughout the discontinuous adherent junctions. The intact detachment of a cell sheet attached to a porous PDMS membrane was demonstrated. Therefore, PDMS has a great potential for enhancing the formation of cell sheets in regenerative medicine. Full article
(This article belongs to the Special Issue Porous Polymers and Polymeric Membranes)
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21 pages, 5649 KiB  
Article
Graphene Oxide Modified Polyamide 66 Ultrafiltration Membranes with Enhanced Anti-Fouling Performance
by Jiangyi Yan, Lihong Nie, Guiliang Li, Yuanlu Zhu, Ming Gao, Ruili Wu and Beifu Wang
Membranes 2022, 12(5), 458; https://doi.org/10.3390/membranes12050458 - 24 Apr 2022
Cited by 4 | Viewed by 2424
Abstract
Improving the contamination resistance of membranes is one of the most effective ways to address the short service life of membranes. While preparing the membrane system structure, doping nanoparticles into the polymer matrix is beneficial to the preparation of high-performance membranes. To develop [...] Read more.
Improving the contamination resistance of membranes is one of the most effective ways to address the short service life of membranes. While preparing the membrane system structure, doping nanoparticles into the polymer matrix is beneficial to the preparation of high-performance membranes. To develop a new structure for membrane contamination protection, in this study, a novel asymmetric polyamide 66 composite ultrafiltration (UF) membrane was fabricated by incorporating different masses (ranging from zero to 0.5 wt.%) of graphene oxide (GO) into the polyamide 66 microporous substrate, using formic acid and propylene carbonate as solvents. The effects of GO doping on the morphology, microporous structure and surface of ultrafiltration membranes were investigated by atomic force microscopy (AFM), scanning electron microscopy (SEM), integrated thermal analysis (DSC) and contact angle (CA). In addition, pure water flux, bovine serum albumin (BSA) rejection and contamination resistance were measured to evaluate the filtration performance of different membranes. The overall performance of all the modified membranes was improved compared to pure membranes. The results of contact angle and permeation experiments showed that the addition of GO improved the hydrophilicity of the membrane, but reduced the permeability of the membrane. The minimum flux was only 3.5 L/m2·h, but the rejection rate was 92.5%. Most noteworthy was the fact that GO further enhanced the anti-pollution performance of the membranes and achieved a remarkable performance of 91.32% when the GO content was 0.5 wt.%, which was 1.36 times higher than that of the pure membrane. Therefore, optimal performance was achieved. Furthermore, the UF membrane made of composite substrate offers a promising solution for the development of long-life ultrafiltration membranes with better stability, high-cost efficiency and adequate chemical durability. Full article
(This article belongs to the Special Issue Porous Polymers and Polymeric Membranes)
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19 pages, 4333 KiB  
Article
Mesoporous Membrane Materials Based on Ultra-High-Molecular-Weight Polyethylene: From Synthesis to Applied Aspects
by Olga V. Arzhakova, Andrei I. Nazarov, Arina R. Solovei, Alla A. Dolgova, Aleksandr Yu. Kopnov, Denis K. Chaplygin, Polina M. Tyubaeva and Alena Yu. Yarysheva
Membranes 2021, 11(11), 834; https://doi.org/10.3390/membranes11110834 - 28 Oct 2021
Cited by 11 | Viewed by 2731
Abstract
The development of new porous polymeric materials with nanoscale pore dimensions and controlled morphology presents a challenging problem of modern materials and membrane science, which should be based on scientifically justified approaches with the emphasis on ecological issues. This work offers a facile [...] Read more.
The development of new porous polymeric materials with nanoscale pore dimensions and controlled morphology presents a challenging problem of modern materials and membrane science, which should be based on scientifically justified approaches with the emphasis on ecological issues. This work offers a facile and sustainable strategy allowing preparation of porous nanostructured materials based on ultra-high-molecular-weight polyethylene (UHMWPE) via the mechanism of environmental intercrystallite crazing and their detailed characterization by diverse physicochemical methods, including SEM, TEM, AFM, liquid and gas permeability, DSC, etc. The resultant porous UHMWPE materials are characterized by high porosity (up to ~45%), pore interconnectivity, nanoscale pore dimensions (below 10 nm), high water vapor permeability [1700 g/(m2 × day)] and high gas permeability (the Gurley number ~300 s), selectivity, and good mechanical properties. The applied benefits of the advanced UHMWPE mesoporous materials as efficient membranes, breathable, waterproof, and insulating materials, light-weight materials with reduced density, gas capture and storage systems, porous substrates and scaffolds are discussed. Full article
(This article belongs to the Special Issue Porous Polymers and Polymeric Membranes)
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