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Synthesis, Characterization and Environmental Assessment of Novel Polymeric Materials for Sustainable Applications

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

Deadline for manuscript submissions: 30 November 2025 | Viewed by 2258

Special Issue Editor


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Guest Editor
Department of Chemical Sciences, Università degli Studi di Catania, 95125 Catania, Italy
Interests: polyesters; synthesis; chemical modification; thermal properties; mechanical properties; barrier properties; biodegradability; food packaging; active packaging; diffusion; permeability; bio-based and biodegradable polymers; polymers from waste; nanocomposites; biocomposites; life cycle assessment
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Special Issue Information

Dear Colleagues,

It is well known that polymers have become key materials for strategic sectors, such as packaging, transportation, building and construction, electrical and electronic, agriculture, medical and sport devices, thanks to their versatility and to their high resource efficiency. Considering the fast-growing population, the high security demand and the control of climate change, our society needs to choose the most efficient solution in order to guarantee the most sustainable development. Plastic materials and products made of plastic offer these advantages because they are extremely resource efficient during their service-life, helping us to avoid waste and consequently to save energy and to decrease CO2 emissions.

Actually, in order to reduce the environmental impact, much attention has been given to plastic obtained from renewable resources, named bio-based plastics.

In order to obtain the best engineering solution, the optimization of their properties is of crucial importance. The knowledge of their chemical, mechanical, thermal, optical and barrier properties is essential, due to the fact that these properties are strictly correlated with the intrinsic structure of the polymers such as the degree of crystallinity, crystalline/amorphous phase ratio, thermal and mechanical treatment, environment, nature of chemical groups present in the polymer, degree of crosslinking, thermal behavior, molecular weight, addition of nanoparticles, etc.

The aim of this Special Issue is to collect and give an overview of the ongoing scientific and industrial research of the recent technological breakthroughs and emerging technologies developed for novel polymers, either fossil fuel-based or bio-based, for every application.

We look forward to receiving your contributions.

Dr. Valentina Siracusa
Guest Editor

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

  • bio-based polymers
  • biodegradable polymers
  • compostable polymers
  • packaging
  • biomedical application
  • engineering application
  • structure–property relationship
  • polymers from wastes
  • nanocomposites
  • new polymer technologies

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Published Papers (1 paper)

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Research

16 pages, 3472 KiB  
Article
Development of Sodium Alginate Bioplastic Reinforced with Dried Orange Juice By-Product for Use in Packaging
by Pedro H. S. Bezerra, Yves J. Souza-Santos, Eliria M. J. A. Pallone, Rosemary A. Carvalho and Fernanda M. Vanin
Polymers 2024, 16(23), 3382; https://doi.org/10.3390/polym16233382 - 30 Nov 2024
Cited by 1 | Viewed by 1921
Abstract
Pollution caused by nonrenewable plastics has driven the use of natural polymers. Similarly, the disposal of food waste still harms the environment. Considering both aspects, this study aimed to evaluate the effect of incorporating orange by-product powder (OBP) as a reinforcing material into [...] Read more.
Pollution caused by nonrenewable plastics has driven the use of natural polymers. Similarly, the disposal of food waste still harms the environment. Considering both aspects, this study aimed to evaluate the effect of incorporating orange by-product powder (OBP) as a reinforcing material into sodium alginate films with glycerol. Sodium alginate-based films were produced using glycerol and various concentrations of OBP. The films were characterized in terms of thickness, color, water content, mechanical properties, light transmission, transparency, X-ray diffraction (XRD), Fourier-transform infrared spectrometry (FTIR), contact angle, solubility, swelling, scanning electron microscopy (SEM), and thermogravimetric analysis (TGA). The addition of OBP significantly (p < 0.05) reduced the water content of the film from 37.75% ± 5.80a (0-OBP) to 24.49% ± 1.47b (45-OBP). The higher the concentration of OBP, the higher the tensile strength of the films, from 7.99 MPa ± 0.91a (0-OBP) to 18 MPa ± 1.38d (45-OBP), and the higher the hydrophobicity, from 57.60° ± 0.41a (0-OBP) to 70.34° ± 0.98c (45-OBP). From TGA and XRD analyses, it was observed that the incorporation of OBP resulted in less crystalline and more thermally resistant materials. Therefore, this study shows that OBP is a promising reinforcing component for sodium alginate films. Full article
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