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Biodegradable Properties of PET Analogous Furan‐Based Polyesters in the Seas
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Researchers tested whether polyethylene furanoate (PEF), a bio-based alternative to PET, biodegrades in marine environments using seawater from Osaka Bay. Laboratory BOD tests confirmed that PEF is marine biodegradable, suggesting it could reduce persistent plastic pollution compared to conventional PET.
Abstract Polyethylene furanoate (PEF), a 100% bio‐based alternative to polyethylene terephthalate, has the potential to be biodegradable under composting conditions. However, information about the biodegradability of PEF is currently lacking, and further studies under realistic natural conditions are needed to gain a comprehensive understanding of the biodegradability of PEF. In this study, we first demonstrated that PEF is marine biodegradable based on the results of laboratory tests using the biochemical oxygen demand (BOD) test method using seawater at the coast of Osaka Bay, Japan. BOD tests revealed a 40% biodegradation of PEF within 90 days. The BOD curve followed a sigmoidal pattern, indicating an initial induction period. This behavior, typical of biodegradable polymers, suggests the presence of enzymes and bacteria capable of hydrolyzing PEF. Additionally, adjusting the length of the methylene chain in furan‐containing polyesters can regulate their biodegradability. These findings hold promise for developing biodegradable polymer building blocks and advancing biobased, biodegradable polymer technology.
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Poly(ethylene furanoate) (PEF): Advances in Synthesis, Properties, Recycling, Applications, and Future Challenges
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Researchers reviewed the synthesis, properties, recycling options, and industrial applications of poly(ethylene furanoate), a fully biobased polyester derived from renewable feedstocks, finding it outperforms petroleum-based PET on gas-barrier and thermal properties while facing remaining challenges in scalable, circular production before widespread commercial deployment.
Marine Biodegradability and Toxicity of Commercially Available Biobased Plastics -A Sustainable Alternative To Petrochemical Plastics?
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This conference abstract examines whether commercially available biobased plastics degrade in the marine environment and whether they produce toxic byproducts. Results suggest that some bioplastics do not biodegrade effectively in seawater and may pose similar risks to marine organisms as conventional petroleum-based plastics.
Bio-polyethylene furanoate (Bio-PEF) from lignocellulosic biomass adapted to the circular bioeconomy
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This review examines the production of bio-polyethylene furanoate (Bio-PEF) from lignocellulosic biomass waste as a sustainable, biobased alternative to conventional PET plastic, highlighting its potential within a circular bioeconomy framework.
Fast Hydrolyzable Constitutional Isomer of Poly(butylene terephthalate) and Its Copolyesters with 1,4-Butanediol
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Researchers developed a fast-hydrolysable polyester designed to degrade more rapidly in the environment than conventional plastics like PET, with the goal of reducing long-term plastic pollution. The new material broke down much more quickly in water while still maintaining acceptable mechanical properties for practical use. Truly biodegradable plastics that fully degrade could help reduce microplastic accumulation in the environment.
Marine PET Hydrolase (PET2): Assessment of Terephthalate- and Indole-Based Polyesters Depolymerization
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Researchers characterized a marine enzyme (PET2) capable of breaking down PET plastic and related polyester materials under relatively mild conditions. Discovering and engineering enzymes that can degrade PET could help address the massive accumulation of PET microplastics in ocean environments.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.