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Catalysis as an Enabling Science for Sustainable Polymers
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Researchers reviewed how catalysis can enable the development of sustainable, bio-based polymers to replace petroleum-derived plastics, analyzing the full system from feedstock to end-of-life and identifying catalytic strategies that improve degradability, recyclability, and carbon footprint.
The replacement of current petroleum-based plastics with sustainable alternatives is a crucial but formidable challenge for the modern society. Catalysis presents an enabling tool to facilitate the development of sustainable polymers. This review provides a system-level analysis of sustainable polymers and outlines key criteria with respect to the feedstocks the polymers are derived from, the manner in which the polymers are generated, and the end-of-use options. Specifically, we define sustainable polymers as a class of materials that are derived from renewable feedstocks and exhibit closed-loop life cycles. Among potential candidates, aliphatic polyesters and polycarbonates are promising materials due to their renewable resources and excellent biodegradability. The development of renewable monomers, the versatile synthetic routes to convert these monomers to polyesters and polycarbonate, and the different end-of-use options for these polymers are critically reviewed, with a focus on recent advances in catalytic transformations that lower the technological barriers for developing more sustainable replacements for petroleum-based plastics.
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Review on Biodegradable Aliphatic Polyesters: Development and Challenges.
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This review covers the development, properties, and challenges of biodegradable aliphatic polyesters — a class of plastics made from renewable or fossil-fuel feedstocks that can break down in the environment. These materials are increasingly proposed as a substitute for conventional plastics, making understanding their real-world biodegradability essential for evaluating their environmental benefits.
Depolymerization within a Circular Plastics System
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This review examines chemical depolymerization as a route to producing virgin-quality recycled plastics from complex waste streams that mechanical recycling cannot handle, covering five commercial polymers including PET, polycarbonates, and polyurethanes. The authors argue that depolymerization must be understood within the broader system of recycling technologies and economic constraints to advance a truly circular plastics economy.
Fully Recyclable Polycarbonates from Simple, Bio-Derived Building Blocks
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Bio-based polycarbonates from glycerol with two end-of-life options: chemical recycling or environmental decomposition.
Developing Bioderived CO2-Responsive Polymers as Alternatives to Petroleum-derived Polymers
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Researchers examined the development of bioderived, CO2-responsive polymers as sustainable alternatives to petroleum-derived plastics, using life cycle assessment principles and green chemistry frameworks to guide material design. The work addresses the environmental harms of petroleum-based plastic production and low recycling rates, proposing bio-based responsive polymers as a route toward materials with reduced environmental impact across their full lifecycle.
Plastics Are Paving the Way for a Greener Future and Accelerating Decarbonization
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This review examines how fossil fuel-based polymers contribute to UN Sustainable Development Goals by enabling applications in solar energy, energy storage, low-carbon transportation, and plastic waste-to-biofuel conversion via thermochemical processes including pyrolysis. The authors argue that a dual strategy combining bio-based polymer development with advanced recycling is necessary to decarbonize the plastics sector.
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.