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Synthesis, Performance and Application of Polymers Materials

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Polymeric Materials".

Deadline for manuscript submissions: closed (10 November 2023) | Viewed by 8722

Special Issue Editors


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Guest Editor
Department of Chemistry, University of Massachusetts Lowell, Lowell, MA 01854-5104, USA
Interests: hydrogels; contrast agents; micelles; drug delivery; nanomedicine; block co-polymers
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Guest Editor
Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, India
Interests: block copolymers; micelles; hydrogels; gels; graphene composites; drug delivery; nanomedicine

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Guest Editor
Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN, USA
Interests: cancer biology; targeted drug and gene delivery; immunology; imaging; biomaterials; biomedical engineering

Special Issue Information

Dear Colleagues,

The advent of novel polymer synthesis tools, such as living radical polymerizations, various "click" chemistry strategies, coupling reactions, hydrothermal, solvothermal, and sonochemical synthesis, were simultaneously employed for the synthesis of various polymeric materials for various applications. Recently, the utility of polymers based on nanomaterials has been very distinct, involving many potential applications, and has been proposed for their use in various applications.

Researchers continue to propose new polymer synthesis with enhanced properties, as well as different applications, considering this enormous scenario of possibilities. The goal of this Special Issue is to highlight the development and fundamental features for the synthesis, characterization, properties, and application of novel polymeric materials, as well as to look ahead to future possibilities. Original research articles and review papers relating to polymer synthesis, modifications of natural polymers and synthetic polymers, preparation and characterization of polymeric micelles/nanogels/hydrogels/polymer nanocomposites, and different applications of functional polymers would be highly welcomed.

Dr. Kalyan Ramesh
Prof. Dr. Biswajit Ray
Dr. Sudhakar Jinka
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. Materials 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 2600 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

  • polymer synthesis
  • polymer characterization
  • polymer composites
  • polymeric structures
  • drug delivery
  • block copolymers
  • hydrogels
  • biomaterials
  • nanogels
  • cross-linked micelles
  • biocompatible
  • targeted drug delivery
  • nanomedicines
  • stimuli-responsive drug release

Published Papers (7 papers)

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Research

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17 pages, 5763 KiB  
Article
Changes in the Rheological and Adhesive Properties of Epoxy Resin Used in the Technology of Reinforcement of Structural Elements with CFRP Tapes
by Andrzej Szewczak
Materials 2023, 16(23), 7408; https://doi.org/10.3390/ma16237408 - 28 Nov 2023
Viewed by 644
Abstract
Nowadays, FRP composites are widely applied in the construction industry. Their inherent characteristics are used to strengthen structural elements made of various materials and to increase their durability. The following paper contains the results obtained in a conducted research program aimed at determining [...] Read more.
Nowadays, FRP composites are widely applied in the construction industry. Their inherent characteristics are used to strengthen structural elements made of various materials and to increase their durability. The following paper contains the results obtained in a conducted research program aimed at determining the ability to improve the durability of epoxy resin modified with the sonication process, microsilica and carbon nanotubes. The adhesive modified was used to adhere a CFRP tape to a concrete surface. Changes in the viscosity, physicochemical parameters and adhesion of the resin were studied. Selected parameters of the concrete substrate prepared using the sandblasting method, determined with the contact profilometry, were also taken into account. During the tests, attention was paid to the thorough execution and preparation of the samples. As a result of the research, it was demonstrated that the adhesion of the modified epoxy adhesive to concrete could be increased by approximately 28% in the case of the addition of carbon nanotubes and by up to 66% in the case of the addition of microsilica. The modifications used, in addition to increasing the adhesion of the resin to the concrete substrate, were also aimed at reducing the weakening of the adhesive joints caused by oxidation of the resin over time. The results obtained will serve as a basis for evaluating the possibility of their use in the practical reinforcement of structural reinforced-concrete elements. Full article
(This article belongs to the Special Issue Synthesis, Performance and Application of Polymers Materials)
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33 pages, 3319 KiB  
Article
Bibliometric and Co-Occurrence Study of Process System Engineering (PSE) Applied to the Polyvinyl Chloride (PVC) Production
by Ángel Darío González-Delgado, Miguel Ramos-Olmos and Nórida Pájaro-Gómez
Materials 2023, 16(21), 6932; https://doi.org/10.3390/ma16216932 - 28 Oct 2023
Viewed by 1849
Abstract
PVC is widely used in packaging, electrical insulation, and medical devices due to its versatility owing to its resistance, incombustible and barrier properties as well as affordable cost. In the present study, bibliometric and co-occurrence analyses are proposed to identify trends, gaps, future [...] Read more.
PVC is widely used in packaging, electrical insulation, and medical devices due to its versatility owing to its resistance, incombustible and barrier properties as well as affordable cost. In the present study, bibliometric and co-occurrence analyses are proposed to identify trends, gaps, future directions, and challenges regarding process system engineering (PSE) applied to the production process of PVC using VOSviewer as a tool for analyzing the data obtained from SCOPUS. A mapping of different topics alluding to simulation of PVC production was provided to gain a better insight into the development of the topic and its progression. The findings indicate that the literature on this topic falls into five different clusters: modeling and simulation of PVC production, process control and optimization, and optimization strategies of the process. From a co-occurrence study we identified that mathematics and statistics applied to polymer chemistry, separation phenomena, and polymer production are the main areas of interest for further research. The trends suggest that Monte Carlo and numerical simulation can contribute to a deeper understanding of PVC’s properties and behavior. In addition, the focus on plastics and microplastics reflects concerns about the environmental impact. A bibliometric study evidenced that PSE provides the tools for improvement in PVC production processes by employing advanced process engineering techniques. Modelling and new algorithms for simulation methods of continuous polymerization processes are important to enhance accuracy and efficiency across various applications. The study also proposes a research agenda for future researchers working in the field of the use of PSE applied to the PVC production process. Full article
(This article belongs to the Special Issue Synthesis, Performance and Application of Polymers Materials)
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19 pages, 4010 KiB  
Article
Characterization of Composite Freeze-Dried Aerogels with Simulant Lunar Regolith for Space Applications
by Laura Borella, Andrea Rozo, Claire Perfetti and Carlo Saverio Iorio
Materials 2023, 16(17), 5797; https://doi.org/10.3390/ma16175797 - 24 Aug 2023
Cited by 2 | Viewed by 992
Abstract
Recently, the goal of space exploration has shifted from the incognito of the solar system to the Moon. Concepts like human permanence on the Moon and thermal protective structures made with ISRU (in situ resource utilization) of raw materials have started to be [...] Read more.
Recently, the goal of space exploration has shifted from the incognito of the solar system to the Moon. Concepts like human permanence on the Moon and thermal protective structures made with ISRU (in situ resource utilization) of raw materials have started to be implemented. By limiting the need to launch supplies from the Earth, the paradigm of spaceflight is changed, privileging the vanguard of the utilisation of resources in situ. Still, the main challenges of surviving the radiation dose and the cryogenic temperatures of the lunar night remain. Recent studies have demonstrated how innovative composite materials can help reduce the temperature stress on exploration vehicles. This research presents the material properties of aerogel insulating materials combined with LHS (lunar highlands simulant) regolith obtained by freeze frying. Organic-based aerogels with different percentages of LHS have been analysed in terms of material, morphology, and thermal properties. Full article
(This article belongs to the Special Issue Synthesis, Performance and Application of Polymers Materials)
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12 pages, 4239 KiB  
Article
Structure of Strongly Adsorbed Polymer Systems: A Computer Simulation Study
by Patrycja Olczyk and Andrzej Sikorski
Materials 2023, 16(17), 5755; https://doi.org/10.3390/ma16175755 - 23 Aug 2023
Viewed by 611
Abstract
The structure of very thin polymer films formed by strongly adsorbed macromolecules was studied by computer simulation. A coarse-grained model of strictly two-dimensional polymer systems was built, and its properties determined by an efficient Monte Carlo simulation algorithm. Properties of the model system [...] Read more.
The structure of very thin polymer films formed by strongly adsorbed macromolecules was studied by computer simulation. A coarse-grained model of strictly two-dimensional polymer systems was built, and its properties determined by an efficient Monte Carlo simulation algorithm. Properties of the model system were determined by means of Monte Carlo simulations with a sampling algorithm that combines Verdier–Stockmayer, pivot and reputation moves. The effects of temperature, chain length and polymer concentration on the macromolecular structure were investigated. It was shown that at low temperatures, the chain size increases with the concentration, that is, inversely with high temperatures. This behavior should be explained by the influence of inter-chain interactions. Full article
(This article belongs to the Special Issue Synthesis, Performance and Application of Polymers Materials)
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13 pages, 4400 KiB  
Article
A Novel One-Step Reactive Extrusion Process for High-Performance Rigid Crosslinked PVC Composite Fabrication Using Triazine Crosslinking Agent@Melamine-Formaldehyde Microcapsules
by Jinshun Zhao, Chun Li, Jiayang Sui, Shuai Jiang, Weizhen Zhao, Shihao Zhang, Rong Wu, Jintong Li and Xuhuang Chen
Materials 2023, 16(13), 4600; https://doi.org/10.3390/ma16134600 - 26 Jun 2023
Cited by 1 | Viewed by 1063
Abstract
In this work, we propose, for the first time, a simple, fast, and efficient strategy to fabricate high-performance rigid crosslinked PVC composites by continuous extrusion. This strategy improves the poor processing fluidity of composites and solves the impossibility of conducting extrusion in one [...] Read more.
In this work, we propose, for the first time, a simple, fast, and efficient strategy to fabricate high-performance rigid crosslinked PVC composites by continuous extrusion. This strategy improves the poor processing fluidity of composites and solves the impossibility of conducting extrusion in one step via using microcapsule-type crosslinking agents prepared by in situ polymerization to co-extrude with PVC blends. The results demonstrate that the PVC/microcapsule composites were successfully prepared. Within the studied parameters, the properties of crosslinked PVC gradually increased with the addition of microcapsules, and its Vicat softening temperature increased from 79.3 °C to 86.2 °C compared with pure PVC. This study shows the possibility for the industrial scale-up of the extrusion process for rigid crosslinked PVC. Full article
(This article belongs to the Special Issue Synthesis, Performance and Application of Polymers Materials)
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13 pages, 3536 KiB  
Article
Investigating the Effect of PCL Concentrations on the Characterization of PLA Polymeric Blends for Biomaterial Applications
by Solechan Solechan, Agus Suprihanto, Susilo Adi Widyanto, Joko Triyono, Deni Fajar Fitriyana, Januar Parlaungan Siregar and Tezara Cionita
Materials 2022, 15(20), 7396; https://doi.org/10.3390/ma15207396 - 21 Oct 2022
Cited by 3 | Viewed by 1948
Abstract
Polylactic acid (PLA) and polycaprolactone (PCL) are synthetic polymers that are extensively used in biomedical applications. However, the PLA/PCL blend produced by ball milling, followed by pressure compaction and sintering, has not been extensively explored. The goal of this research is to investigate [...] Read more.
Polylactic acid (PLA) and polycaprolactone (PCL) are synthetic polymers that are extensively used in biomedical applications. However, the PLA/PCL blend produced by ball milling, followed by pressure compaction and sintering, has not been extensively explored. The goal of this research is to investigate the effect of the composition of biomaterials derived from PLA and PCL prepared by ball milling, followed by pressure compaction and sintering, on mechanical and physical properties. PCL and PLA with various concentrations were blended utilizing a ball milling machine for 2 h at an 80-rpm rotation speed. The obtained mixture was placed in a stainless steel 304 mold for the compacting process, which uses a pressure of 30 MPa to create a green body. The sintering procedure was carried out on the green body created at 150 °C for 2 h using a digital oven. The obtained PLA/PCL blend was tested using Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), Scanning electron microscopy (SEM), density, porosity, and three-point bending. Following the interaction between PCL and PLA in the PLA/PCL blend, the FTIR spectra and XRD diffractograms obtained in this work revealed a number of modifications in the functional groups and crystal phase. The 90PLA specimen had the best mechanical properties, with a maximum force and displacement of 51.13 N and 7.21 mm, respectively. The porosity of the PLA/PCL blend decreased with increasing PLA concentration so that the density and flexural properties of the PLA/PCL blend increased. The higher PCL content decreased the stiffness of the PLA molecular chain, consequently reducing its flexural properties. Full article
(This article belongs to the Special Issue Synthesis, Performance and Application of Polymers Materials)
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Review

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17 pages, 9554 KiB  
Review
Recent Progress in Modification of Polyphenylene Oxide for Application in High-Frequency Communication
by Lingyuan Liao, Wenhong Ruan, Mingqiu Zhang and Musong Lin
Materials 2024, 17(5), 1086; https://doi.org/10.3390/ma17051086 - 27 Feb 2024
Viewed by 699
Abstract
With the rapid development of highly integrated electronic devices and high-frequency microwave communication technology, the parasitic resistance–capacitance (RC) delay and propagation loss severely restrict the development of a high-frequency communication system. Benefiting from its low dielectric constants (Dk) [...] Read more.
With the rapid development of highly integrated electronic devices and high-frequency microwave communication technology, the parasitic resistance–capacitance (RC) delay and propagation loss severely restrict the development of a high-frequency communication system. Benefiting from its low dielectric constants (Dk) and low dielectric loss factor (Df), polyphenylene oxide (PPO) has attracted widespread attention for its application in the dielectric layers of integrated circuits. However, PPO suffers from a very high melting viscosity, a larger coefficient of thermal expansion than copper wire and poor solvent resistance. Recently, many efforts have focused on the modification of PPO by various means for communication applications. However, review articles focusing on PPO are unexpectedly limited. In this article, the research progress concerning PPO materials in view of the modification of PPO has been summarized. The following aspects are covered: polymerization and design of special chemical structure, low molecular weight PPO and blending with thermosetting resin, hyperbranched PPO, thermosetting PPO and incorporating with fillers. In addition, the advantages and disadvantages of various types of modification methods and their applications are compared, and the possible future development directions are also proposed. It is believed that this review will arouse the interest of the electronics industry because of the detailed summary of the cutting-edge modification technology for PPO. Full article
(This article belongs to the Special Issue Synthesis, Performance and Application of Polymers Materials)
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