Advances in Porous Polymeric Networks: Synthesis, Properties and Applications

A special issue of Polymers (ISSN 2073-4360). This special issue belongs to the section "Polymer Applications".

Deadline for manuscript submissions: closed (15 April 2024) | Viewed by 3518

Special Issue Editors


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Department of Science and Technology Projects, D. Mendeleev University of Chemical Technology of Russia, 9 Miusskaya sq., 125047 Moscow, Russia
Interests: organoelement; organosilicon; phosphazenes; polymers; synthesis; hydrophobicity; coatings
Hubei Key Laboratory of Radiation Chemistry and Functional Materials, School of Nuclear Technology and Chemistry & Biology, Hubei University of Science and Technology, Xianning 437100, China
Interests: polymer composite; functional polymer; electron beam irradiation; positron annihilation lifetime spectroscopy
College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
Interests: advanced oxidation processes; transportation and transformation of pollutants in the environment; photochemical transformation; heavy metal pollution control; polymer adsorbent; hybrid polymeric materials; polymeric nanocomposites; polymer degradation
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Special Issue Information

Dear Colleagues,

In recent decades, there has been a tremendous growth of interest in porous materials. This is mostly due to novel successes in polymer chemistry, which allow us to obtain novel porous polymeric networks with specified morphology and various functional groups, providing specific and directed properties (covalent organic frameworks, hypercrosslinked porous polymers, conjugated microporous polymers, etc.). These polymers might be promising as novel organic or organoelement analogs for traditional highly porous materials such as zeolites, porous silica, and carbon.

In this context, this Special Issue is dedicated to the most recent research works on the development of novel functional porous polymers and findings around novel synthetic approaches, allowing the finetuning of porosity of these polymers, study of their properties, and application aspects in various fields of science and technology, such as catalysis, water purification, sensorics, chromatography, biomedical applications, etc.

Dr. Mikhail A. Soldatov
Dr. Jie Gao
Dr. Xiande Xie
Guest Editors

Manuscript Submission Information

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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

  • porous polymers
  • micro-/mesoporous materials
  • hypercrosslinked polymers
  • polymeric networks
  • adsorption
  • catalysis
  • hybrid porous materials
  • covalent organic frameworks

Published Papers (2 papers)

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Research

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14 pages, 4206 KiB  
Article
Porous Poly(2-hydroxyethyl methacrylate) Hydrogel Scaffolds for Tissue Engineering: Influence of Crosslinking Systems and Silk Sericin Concentration on Scaffold Properties
by Nantaprapa Tuancharoensri, Sukhonthamat Sonjan, Sudarat Promkrainit, Jinjutha Daengmankhong, Preeyawass Phimnuan, Sararat Mahasaranon, Jirapas Jongjitwimol, Pensri Charoensit, Gareth M. Ross, Céline Viennet, Jarupa Viyoch and Sukunya Ross
Polymers 2023, 15(20), 4052; https://doi.org/10.3390/polym15204052 - 11 Oct 2023
Cited by 1 | Viewed by 1035
Abstract
Tailored porous structures of poly(2-hydroxyethyl methacrylate) (PHEMA) and silk sericin (SS) were used to create porous hydrogel scaffolds using two distinct crosslinking systems. These structures were designed to closely mimic the porous nature of the native extracellular matrix. Conventional free radical polymerization of [...] Read more.
Tailored porous structures of poly(2-hydroxyethyl methacrylate) (PHEMA) and silk sericin (SS) were used to create porous hydrogel scaffolds using two distinct crosslinking systems. These structures were designed to closely mimic the porous nature of the native extracellular matrix. Conventional free radical polymerization of 2-hydroxyethyl methacrylate (HEMA) was performed in the presence of different concentrations of SS (1.25, 2.50, 5.00% w/v) with two crosslinking systems. A chemical crosslinking system with NN-methylene bisacrylamide (MBAAm) and a physical crosslinking system with dimethylurea (DMU) were used: C-PHEMA/SS (crosslinked using MBAAm) and C-PHEMA/pC-SS (crosslinked using MBAAm and DMU). The focus of this study was on investigating the impact of these crosslinking methods on various properties of the scaffolds, including pore size, pore characteristics, polymerization time, morphology, molecular interaction, in vitro degradation, thermal properties, and in vitro cytotoxicity. The various crosslinked networks were found to appreciably influence the properties of the scaffolds, especially the pore sizes, in which smaller sizes and higher numbers of pores with high regularity were seen in C-PHEMA/1.25 pC-SS (17 ± 2 μm) than in C-PHEMA/1.25 SS (34 ± 3 μm). Semi-interpenetrating networks were created by crosslinking PHEMA-MBAAm-PHEMA while incorporating free protein molecules of SS within the networks. The additional crosslinking step involving DMU occurred through hydrogen bonding of the -C=O and -N-H groups with the SS, resulting in the simultaneous incorporation of DMU and SS within the PHEMA networks. As a consequence of this process, the scaffold C-PHEMA/pC-SS exhibited smaller pore sizes compared to scaffolds without DMU crosslinking. Moreover, the incorporation of higher loadings of SS led to even smaller pore sizes. Additionally, the gelation time of C-PHEMA/pC-SS was delayed due to the presence of DMU in the crosslinking system. Both porous hydrogel scaffolds, C-PHEMA/pC-SS and PHEMA, were found to be non-cytotoxic to the normal human skin dermal fibroblast cell line (NHDF cells). This promising result indicates that these hydrogel scaffolds have potential for use in tissue engineering applications. Full article
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Review

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26 pages, 5824 KiB  
Review
Preparation and Application Progress of Imprinted Polymers
by Yongsheng Shen, Pengpai Miao, Shucheng Liu, Jie Gao, Xiaobing Han, Yuan Zhao and Tao Chen
Polymers 2023, 15(10), 2344; https://doi.org/10.3390/polym15102344 - 17 May 2023
Cited by 3 | Viewed by 2046
Abstract
Due to the specific recognition performance, imprinted polymers have been widely investigated and applied in the field of separation and detection. Based on the introduction of the imprinting principles, the classification of imprinted polymers (bulk imprinting, surface imprinting, and epitope imprinting) are summarized [...] Read more.
Due to the specific recognition performance, imprinted polymers have been widely investigated and applied in the field of separation and detection. Based on the introduction of the imprinting principles, the classification of imprinted polymers (bulk imprinting, surface imprinting, and epitope imprinting) are summarized according to their structure first. Secondly, the preparation methods of imprinted polymers are summarized in detail, including traditional thermal polymerization, novel radiation polymerization, and green polymerization. Then, the practical applications of imprinted polymers for the selective recognition of different substrates, such as metal ions, organic molecules, and biological macromolecules, are systematically summarized. Finally, the existing problems in its preparation and application are summarized, and its prospects have been prospected. Full article
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