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Preparation and Application of Biodegradable Polymeric Materials—2nd Edition

A special issue of Polymers (ISSN 2073-4360). This special issue belongs to the section "Biobased and Biodegradable Polymers".

Deadline for manuscript submissions: 28 February 2026 | Viewed by 679

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Guest Editor
Landscape, Environment, Agriculture and Food Research Unit, School of Agriculture, University of Lisbon, Tapada da Ajuda, 1349-017 Lisbon, Portugal
Interests: biomass; bionanotechnology; bionanocomposites; electrospinning; food packaging
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Special Issue Information

Dear Colleagues,

Polymeric materials have been widely used in the food industry for packaging development due to their performance and ease of production. However, the environmental pollution caused by plastics has driven the search for biodegradable polymeric materials. These polymers have advantages over synthetic polymers, such as reducing the negative impact on the environment, biodegradability, and biocompatibility. On the other hand, biodegradable polymers may have low viscosity, poor mechanical properties, and thermal sensitivity. Thus, innovative technologies and processes should be further explored to produce biodegradable materials that are competitive with petrochemical polymeric materials to meet the growing demand for safe food and reduce production costs. In this sense, reinforcement in polymeric matrices from nanofillers has been proposed. The interaction between the nanoscale reinforcement and the polymeric matrix improves the properties of several biodegradable polymeric materials. The main objective of this Special Issue is to present the latest advances in the applications and potential of biodegradable polymers in the production of food packaging, reporting innovative techniques for the production and characterization of polymeric materials, strategies to improve the properties of biodegradable polymers, as well as the main challenges and future perspectives in the food packaging area.

Prof. Dr. Juliana Botelho Moreira
Guest Editor

Manuscript Submission Information

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Keywords

  • biodegradability
  • biopolymer-based films
  • characterization techniques
  • nanofillers
  • physicochemical properties
  • sustainability

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Published Papers (1 paper)

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Research

13 pages, 1947 KB  
Article
Fabrication of Crosslinked Poly(L-lactic acid) with Enhanced Shape Memory Performance via γ-Ray Irradiation
by Jiayao Wang, Jingxin Zhao, Dong Yang, Jichun You and Guipeng Yu
Polymers 2025, 17(22), 3041; https://doi.org/10.3390/polym17223041 - 17 Nov 2025
Viewed by 471
Abstract
In this work, an innovative approach has been established to overcome the intrinsic limitations of poly(L-lactic acid) (PLLA)-based shape memory polymers (SMPs) by introducing γ-ray-induced crosslinking in miscible PLLA/triallyl isocyanurate (TAIC) blends. The crosslinking density can be precisely adjusted by the TAlC content [...] Read more.
In this work, an innovative approach has been established to overcome the intrinsic limitations of poly(L-lactic acid) (PLLA)-based shape memory polymers (SMPs) by introducing γ-ray-induced crosslinking in miscible PLLA/triallyl isocyanurate (TAIC) blends. The crosslinking density can be precisely adjusted by the TAlC content and absorbed irradiation dose, enabling the fabrication of PLLA SMPS with outstanding shape memory properties. In crosslinked PLLA SMPs, the crosslinking point can significantly suppress the cold crystallization and prevent the irreversible chain slippage during deformation in the shape memory process, resulting in not only a high shape recovery ratio (99.5% at 10 wt% TAIC) but also a good cycle stability (maintaining 97.9% after three cycles). Moreover, the crosslinking points as well as the PLLA crystals endow PLLA with triple-shape memory performance, in which both the glass transition temperature and melting temperature serve as switch conditions. Remarkably, even under extreme deformation conditions (strain up to 800%), the crosslinked PLLA SMPs maintain a recovery ratio as high as 99.3%. Our results offer a novel strategy for fabricating high-performance PLLA SMPs with exceptional shape recovery capabilities. Full article
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