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Polymers
Special Issues
Functional Polymers and Novel Applications
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Functional Polymers and Novel Applications

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

Deadline for manuscript submissions: 31 May 2024 | Viewed by 2578

Special Issue Editors

Dr. Ran Chen

E-Mail Website
Guest Editor
College of Materials Science and Engineering, Xi’an University of Science and Technology, Xi’an 710054, China
Interests: liquid crystal materials; polymer network liquid crystals; augmented reality displays; DFT calculations; photovoltaic devices
Prof. Dr. Jinhui Wang

E-Mail Website
Guest Editor
Key Laboratory for Special Functional Materials of Ministry of Education, Henan University, Kaifeng, China
Interests: electrochromism; energy storage; polymer deformation; sensing; bionics
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Traditional polymer products play vital roles in the clothing, food, housing and transportation industries, in the form of plastics, rubber, binders, fibers, and proteins, among others. With the progress of social civilization and the continuous innovation of science and technology, emerging functional polymers are opening up their rich applications in various fields. Various molecular engineering, device fabrication processes, and fundamental models are being explored to enrich their properties, functions, and applications. For example, liquid crystal polymers are developed for a variety of liquid crystal optical elements and polymer-stabilized liquid crystal devices, which are widely used in the emerging field of meta-universe displays. Environmentally friendly polymeric adhesives are grown for the restoration and preservation of precious paper archives.

Dr. Ran Chen
Prof. Dr. Jinhui Wang
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

  • functional polymers
  • reactive liquid crystal monomers
  • liquid crystal optical elements
  • liquid crystal polymers
  • photovoltaic devices
  • culture heritage

Published Papers (2 papers)

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Research

21 pages, 2071 KiB  
Article
Νovel Polylactic Acid/Tetraethyl Citrate Self-Healable Active Packaging Films Applied to Pork Fillets’ Shelf-Life Extension
by Vassilios K. Karabagias, Aris E. Giannakas, Nikolaos D. Andritsos, Dimitrios Moschovas, Andreas Karydis-Messinis, Areti Leontiou, Apostolos Avgeropoulos, Nikolaos E. Zafeiropoulos, Charalampos Proestos and Constantinos E. Salmas
Polymers 2024, 16(8), 1130; https://doi.org/10.3390/polym16081130 - 17 Apr 2024
Viewed by 1419
Abstract
Nowadays, increased food safety and decreased food waste are two of the major global interests. Self-healable active packaging materials are an attractive option to achieve such targets. This property is critical for the hygiene and the consumption appropriateness of the food. Polylactic acid [...] Read more.
Nowadays, increased food safety and decreased food waste are two of the major global interests. Self-healable active packaging materials are an attractive option to achieve such targets. This property is critical for the hygiene and the consumption appropriateness of the food. Polylactic acid is a very promising polymeric matrix that potentially could replace the widely used low-density polyethylene due to its biobased origin and its easy biodegradable nature. The main drawback of this polymeric matrix is its brittle, fragile nature. On the other hand, tetraethyl citrate is a biobased approved food additive which became an attractive option as a plasticizer for industries seeking alternative materials to replace the traditional petrochemically derived compounds. A novel biobased film exhibiting self-healing behavior suitable for food-active packaging was developed during this study. Polylactic acid’s brittleness was reduced drastically by incorporating tetraethyl citrate, and a random cut on the original self-repairing film was fully healed after 120 s. The optimum concentration of tetraethyl citrate in the polylactic acid was around 15% v/w with a water/oxygen barrier close to the relevant of polylactic acid and low migration. According to the EC50 parameter, the antioxidant activity was 300% higher than the relevant of pure polylactic acid, while according to the thiobarbituric acid and heme iron parameters, the film resisted lipid oxidation and deterioration. Finally, the total viable count parameter indicates the strong antimicrobial activity of this sample. Full article
(This article belongs to the Special Issue Functional Polymers and Novel Applications)
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21 pages, 8165 KiB  
Article
The Effect of Silver Nanoparticles/Titanium Dioxide in Poly(acrylic acid-co-acrylamide)-Modified, Deproteinized, Natural Rubber Composites on Dye Removal
by Supharat Inphonlek, Chaiwat Ruksakulpiwat and Yupaporn Ruksakulpiwat
Polymers 2024, 16(1), 92; https://doi.org/10.3390/polym16010092 - 28 Dec 2023
Cited by 1 | Viewed by 708
Abstract
This work aims to enhance the dye-removal performance of prepared poly(acrylic acid-co-acrylamide)-modified, deproteinized, natural rubber ((PAA-co-PAM)-DPNR) through incorporation with silver nanoparticles/titanium dioxide. The (PAA-co-PAM)-DPNR was prepared by emulsion-graft copolymerization with a grafting efficiency of 10.20 ± 2.33 [...] Read more.
This work aims to enhance the dye-removal performance of prepared poly(acrylic acid-co-acrylamide)-modified, deproteinized, natural rubber ((PAA-co-PAM)-DPNR) through incorporation with silver nanoparticles/titanium dioxide. The (PAA-co-PAM)-DPNR was prepared by emulsion-graft copolymerization with a grafting efficiency of 10.20 ± 2.33 to 54.26 ± 1.55%. The composites based on (PAA-co-PAM)-DPNR comprising silver nanoparticles and titanium dioxide ((PAA-co-PAM)-DPNR/Ag-TiO2) were then prepared by latex compounding using the fixed concentration of AgNO3 (0.5 phr) and varying concentrations of TiO2 at 1.0, 2.5, and 5.0 phr. The formation of silver nanoparticles was obtained by heat and applied pressure. The composites had a porous morphology as they allowed water to diffuse in their structure, allowing the high specific area to interact with dye molecules. The incorporation of silver nanoparticles/titanium dioxide improved the compressive modulus from 1.015 ± 0.062 to 2.283 ± 0.043 KPa. The (PAA-co-PAM)-DPNR/Ag-TiO2 composite with 5.0 phr of TiO2 had a maximum adsorption capacity of 206.42 mg/g, which increased by 2.02-fold compared to (PAA-co-PAM)-DPNR. The behavior of dye removal was assessed with the pseudo-second-order kinetic model and Langmuir isotherm adsorption model. These composites can maintain their removal efficiency above 90% for up to five cycles. Thus, these composites could have the potential for dye-removal applications. Full article
(This article belongs to the Special Issue Functional Polymers and Novel Applications)
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