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Polymers for Environmental Applications

A special issue of Polymers (ISSN 2073-4360). This special issue belongs to the section "Circular and Green Sustainable Polymer Science".

Deadline for manuscript submissions: 20 March 2026 | Viewed by 3735

Special Issue Editors


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Guest Editor
Polymer Engineering Group (GIP), Polymer Science and Technology Institute (ICTP), Spanish Council for Scientific Research (CSIC), 28006 Madrid, Spain
Interests: polymer engineering; polymers and plastics; macromolecular chemistry; polymer composites; polyblends and polymer alloys; interphases; environmental polymer science and technology
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
Polymer Engineering Group (GIP), Polymer Science and Technology Institute (ICTP), Spanish Council for Scientific Research (CSIC), 28006 Madrid, Spain
Interests: polymer engineering; polymers and plastics; macromolecular chemistry; polymer composites; polyblends and polymer alloys; interphases; environmental polymer science and technology
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

In the early 1980s, the first global environmental crisis took place, with an emphasis on the role played by the presence of plastics in the huge solid waste streams of big cities. It was clear then (as it is now) that the best environmental management practices require solid scientific and technical knowledge (most often under technical standards). Thus, these plastics, once at the end of their useful life, now have their materials (polymers and additives) coalesced into a circular economy strategy conjugated with the non-steady scenarios of other key sectors of the economy, industry, society, and policy. Thus, a twofold perspective—applied and academic—to link tandem polymers and the environment has led, forty years later, to a wide polymer research field devoted to the continuous improvement of the environmental performance of polymers and polymer-based materials. This strategy comprises all steps in the polymer management chain, from the raw materials to the polymers themselves, many of which come from classical and/or renewable sources (so-called bioplastics). There is thus a need to improve the processability, ultimate properties, and performance through environment-friendly additives; the recyclability of the materials; and innovative processes that will allow for better mechanical and/or energy recovery, including chemical recycling. Therefore, this Special Issue welcomes all works related to this critical polymer R&D area.

Dr. Jesús-María García-Martínez
Dr. Emilia P. Collar
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

  • plastics and circular economy
  • bioplastics
  • biocomposites
  • ecofriendly blends
  • additives and plastics performance
  • ecofriendly additives
  • plastic wastes and recycling
  • plastic wastes valorization routes
  • life-cycle assessment (LCA)
  • standardization and legal frameworks

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Published Papers (3 papers)

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Research

18 pages, 3248 KB  
Article
Assessing PLA/PBSA Films for Sustainable Packaging for Moist and Perishable Foods
by Maria-Beatrice Coltelli, Francesca Cartoni, Luca Panariello, Laura Aliotta, Vito Gigante and Andrea Lazzeri
Polymers 2025, 17(23), 3093; https://doi.org/10.3390/polym17233093 - 21 Nov 2025
Viewed by 735
Abstract
The environmental impact of petroleum-based plastics has accelerated the search for sustainable alternatives in food packaging. Polylactic acid (PLA), a biobased and compostable polymer, is among the most promising candidates, yet its inherent brittleness and poor moisture barrier limit its application in high-humidity [...] Read more.
The environmental impact of petroleum-based plastics has accelerated the search for sustainable alternatives in food packaging. Polylactic acid (PLA), a biobased and compostable polymer, is among the most promising candidates, yet its inherent brittleness and poor moisture barrier limit its application in high-humidity contexts such as dairy packaging. This study investigates immiscible PLA/poly(butylene succinate-co-adipate) (PBSA) blend films as potential biobased packaging materials for perishable foods. Even if these blends have been already studied, limited attention has been given to the systematic characterization of the baseline barrier properties of unmodified PLA/PBSA blends in contact with liquid dairy products. Four blend ratios (PLA/PBSA = 30/70, 40/60, 50/50, 60/40 wt%) were prepared via micro-compounding and compression molding. The films were characterized through melt flow analysis, FTIR, SEM, DSC, DMTA, and tensile testing to evaluate their thermal, morphological, and mechanical properties. Crucially, moisture barrier performance was assessed under simulated dairy conditions by sealing fresh whey at 4 °C and monitoring weight loss over 30 days. Results revealed that while tensile strength and storage modulus (E’) decreased nearly linearly with increasing PBSA content, elongation at break exhibited a non-linear trend, highlighting the complex interplay between blend morphology and mechanical behavior. The study provides a baseline understanding of neat PLA/PBSA blends in contact with liquid dairy, identifying the most promising formulations for future scale-up. These findings contribute to the development of biodegradable packaging systems tailored for refrigerated, high-moisture food applications Full article
(This article belongs to the Special Issue Polymers for Environmental Applications)
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23 pages, 3913 KB  
Article
Physico-Chemical, Rheological, and Antiviral Properties of Poly(butylene succinate) Biocomposites with Terpene—Hydrophobized Montmorillonite
by Magdalena Zdanowicz, Mateusz Barczewski, Małgorzata Mizielińska and Piotr Miądlicki
Polymers 2025, 17(22), 2984; https://doi.org/10.3390/polym17222984 - 10 Nov 2025
Viewed by 642
Abstract
The aim of the work was to obtain poly(butylene succinate)—a PBS biocomposite material with an addition of natural sodium montmorillonite (Na-MMT) modified with two selected terpenes: pinene (P) and limonene (L) or their mixture (PL)—and examine their physico-chemical, rheological, and antiviral properties. Na-MMT [...] Read more.
The aim of the work was to obtain poly(butylene succinate)—a PBS biocomposite material with an addition of natural sodium montmorillonite (Na-MMT) modified with two selected terpenes: pinene (P) and limonene (L) or their mixture (PL)—and examine their physico-chemical, rheological, and antiviral properties. Na-MMT was effectively hydrophobized and intercalated (confirmed with FTIR, TGA, and XRD analysis results) with the terpenes via the solventless method. The materials were obtained via extrusion, and the films were formed using thermo-compression molding. The addition of the fillers slightly increased mechanical properties, but barrier properties towards oxygen and water vapor were significantly improved (OTR from 52 to 28 cm3/m2∙24 h and WVTR 21 to 11 g/m2∙24 h for PBS and composite, respectively) without alteration of polymer morphology (SEM, XRD, FTIR) or thermal and thermomechanical properties, despite high filler content (10 wt%) in the polymer matrix. Surface contact angle values of PBS/M, PBS/M-L, and PBS/M-PL exhibited antiviral properties and were tested using Φ6 bacteriophage. The composites can be used for materials in medical and food packaging applications. Full article
(This article belongs to the Special Issue Polymers for Environmental Applications)
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19 pages, 1637 KB  
Article
Comparative Analysis of Plastic Waste Management Options Sustainability Profiles
by Madalina-Maria Enache, Daniela Gavrilescu and Carmen Teodosiu
Polymers 2025, 17(15), 2117; https://doi.org/10.3390/polym17152117 - 31 Jul 2025
Cited by 1 | Viewed by 1903
Abstract
Efficient plastic waste end-of-life management is a serious worldwide environmental issue motivated by growing waste production and negative effects of wrongful disposal. This study presents a comparative overview of plastic waste management regimes within the European Union (EU), the United States of America [...] Read more.
Efficient plastic waste end-of-life management is a serious worldwide environmental issue motivated by growing waste production and negative effects of wrongful disposal. This study presents a comparative overview of plastic waste management regimes within the European Union (EU), the United States of America (USA), and Romania, ranked with circular economy goals. By using the United States Environmental Protection Agency (US EPA) Waste Reduction Model (WARM), version 16, the study provides a quantified score to greenhouse gas (GHG) emissions within three large options of management: recycling, energy recovery through combustion, and landfilling. The model setup utilizes region-specific information on legislation, base technology, and recycling efficiency. The outcomes show that recycling always entails net GHG emissions reductions, i.e., −4.49 kg CO2e/capita/year for EU plastic waste and −20 kg CO2e/capita/year for USA plastic waste. Combustion and landfilling have positive net emissions from 1.76 to 14.24 kg CO2e/capita/year. Economic indicators derived from the model also show significant variation: salaries for PET management amounted to USD 2.87 billion in the EU and USD 377 million in the USA, and tax collection was USD 506 million and USD 2.01 billion, respectively. The conclusions highlight the wider environmental and socioeconomic benefits of recycling and reinforce its status as a cornerstone of circular-economy sustainable plastic waste management and a strategic element of national development agendas, with special reference to Romania’s national agenda. Full article
(This article belongs to the Special Issue Polymers for Environmental Applications)
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