Recent Advances in Biobased and Biodegradable Polymer Materials for Packaging Applications

Dear Colleagues,

The longevity and environmental impact of conventional petroleum-based plastics have triggered intensive research into sustainable alternatives for packaging applications. This Special Issue presents a curated selection of advanced studies on bio-based and biodegradable polymers from renewable resources, including different polymers such as polysaccharides, aliphatic polyesters (e.g., PLA, PHAs), proteins, lignin-based systems, etc. The focus of the contributions is on the molecular design, structural optimisation, and functionalisation of these materials to improve mechanical, thermal and barrier properties while ensuring controlled biodegradability. Innovative approaches such as the formulation of nanocomposites, bio-based blends, multilayer structuring and environmentally friendly processing technologies will be investigated for their potential to overcome current performance limits. In addition to material innovation, the issue also looks at broader sustainability metrics, recycling processes, including life cycle assessment, end-of-life scenarios (industrial composting, home biodegradation, marine degradation), and evolving regulatory frameworks. These interdisciplinary insights reflect a convergence of polymer science, environmental engineering, and sustainable design, and they aim to advance the integration of biodegradable polymers into real-world packaging systems. By linking fundamental materials research with applied technological development, this issue contributes to the transition to a circular economy and offers ways to reduce plastic pollution and support long-term ecological resilience.

Dr. Urška Vrabič-Brodnjak
Guest Editor

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