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Papers
61,005 resultsShowing papers similar to Sustainable Copolyester Hot-Melt Adhesives: Tunable Design, Robust Bonding, and Closed-Loop Recyclability
ClearCircularity in polymers: addressing performance and sustainability challenges using dynamic covalent chemistries
Researchers reviewed how dynamic covalent chemistry can be applied to polymeric materials to enable closed-loop recyclability, addressing the waste accumulation caused by current plastics. The study examines how reversible chemical bonds can be tailored for specific reprocessing conditions and evaluates the potential economic and environmental impacts of these recyclable polymer systems.
Sustainable Designof Poly(trimethylene succinate-co-terephthalate)Copolyesters: Melt Memory Effects, AcceleratedCrystallization, and Enhanced Mechanical Properties
Researchers synthesised biobased biodegradable poly(trimethylene succinate-co-terephthalate) (PTST) copolyesters using 1,3-propanediol as an eco-friendly monomer substitute for industrialised 1,4-butanediol, investigating crystallisation kinetics, self-nucleation behaviour, and mechanical properties across a range of succinic acid compositions. They identified a melt memory self-nucleation effect that enables cost-effective accelerated crystallisation and improved mechanical performance, offering a sustainable polymer alternative addressing both fossil resource depletion and microplastic pollution.
Improving the marine biodegradability of poly(alkylene succinate)-based copolymers
Researchers synthesized novel marine-biodegradable copolymers based on poly(ethylene succinate) and poly(butylene succinate) by incorporating different dicarboxylic acid units. They found that even small amounts of longer-chain acid units enabled the polymers to biodegrade in seawater while maintaining tunable mechanical and thermal properties. The findings offer a design strategy for creating plastics that can replace conventional polymers while breaking down naturally in marine environments.
Sustainable Plastics with High Performance and Convenient Processibility
Researchers developed a new approach to creating sustainable plastics by combining bio-derived polymers with petroleum-based monomers through in situ polymerization. The resulting materials showed strong mechanical properties, good processability, and improved environmental degradability compared to conventional plastics. The study offers a potential pathway toward reducing microplastic pollution by designing plastics that break down more readily after disposal.
Sustainable Manufacturing of Intelligent Connectors: Optimizing Recycled Polymeric Compositions for Smart Technology and Robotics
Researchers evaluated the mechanical performance and environmental impact of polymeric compounds for intelligent connectors in robotics and smart technologies, formulating blends of virgin plastic and recycled material containing Liquid Crystalline Polymers (LCPs) via injection molding. The study identified optimal recycled material formulations that balanced environmental benefits with the mechanical effectiveness required for smart technology applications.
Giving superabsorbent polymers a second life as pressure-sensitive adhesives
Researchers developed a method to recycle the super-absorbent plastic found in diapers and hygiene products — a material normally destined for landfills — into functional adhesives, while a life cycle assessment confirmed the recycled adhesives produce less CO2 than petroleum-derived alternatives. The work demonstrates a practical path to give a notoriously difficult-to-recycle polymer waste stream a second life.
Sustainable Design of Poly(trimethylene succinate- co -terephthalate) Copolyesters: Melt Memory Effects, Accelerated Crystallization, and Enhanced Mechanical Properties
Researchers synthesised a series of biobased biodegradable poly(trimethylene succinate-co-terephthalate) (PTST) copolyesters using 1,3-propanediol as an eco-friendly monomer alternative to conventional 1,4-butanediol, investigating their nonisothermal crystallisation kinetics, self-nucleation behaviour, and mechanical properties via Jeziorny, Ozawa, and Mo model analysis. They identified a melt memory self-nucleation effect enabling accelerated crystallisation and enhanced mechanical performance as a sustainable alternative to fossil-based polymers that contribute to microplastic pollution.
Process Optimization of Solvents Assisted Polyethylene Waste Recycling
Researchers optimized solvent-based chemical recycling of polyethylene plastic waste to recover high-quality recycled material. The study demonstrates that chemical recycling can be tuned to maximize yield and quality, offering a scalable alternative to mechanical recycling that degrades plastic properties over time.
Advanced Plastic Waste Recycling—The Effect of Clay on the Morphological and Thermal Behavior of Recycled PET/PLA Sustainable Blends
Researchers prepared blends of recycled PET and bio-based polylactic acid (PLA) with clay additives, finding that clay incorporation affects the morphological and thermal properties of the mixed plastic, with implications for improving PET/PLA recycling compatibility.
Stapler Strategies for Upcycling Mixed Plastics
Scientists developed small molecules that work alongside compatibilizing polymers to allow previously incompatible mixed plastics to be mechanically recycled together. The approach successfully maintained material properties through 20 recycling cycles and was tested on real post-consumer plastic waste.
A strategy to enhance recyclability of degradable block copolymers by introducing low-temperature formability
Researchers developed degradable block copolymers of poly(trimethylene carbonate) and polylactide with enhanced recyclability through a reversible pressure-induced phase transition between ordered solid and disordered melt states at ambient temperature, enabling low-temperature processing without heat.
Mechanochemical synthesis of polypropylene-based macromolecular stabilizers
Researchers developed a solvent-free, mechanical grinding method to chemically attach stabilizing additives directly onto polypropylene plastic, creating more durable materials without harmful solvents — an advance in making plastic manufacturing cleaner and safer.
Innovative Sustainable Concrete: Fresh and Hardened Properties Incorporating Plastic Waste
This study investigated the effects of incorporating plastic waste into concrete on mechanical and durability properties, addressing the hydrophobic nature and poor interfacial adhesion of plastic as a challenge within circular economy frameworks for construction material sustainability.
Synthesis, Properties of Biodegradable Poly(Butylene Succinate-co-Butylene 2-Methylsuccinate) and Application for Sustainable Release
A new biodegradable polyester plastic was synthesized from bio-based starting materials and tested for use in sustainable packaging applications. This type of material could help reduce conventional plastic waste and the resulting microplastic pollution.
Properties of Simulated Plastic Waste Mixtures in Upcycling Processes: An Experimental Evaluation
This study evaluated the mechanical and thermal properties of ternary and quaternary blends of low-density polyethylene and polypropylene to simulate mixed plastic waste, finding that blend composition significantly affects material quality and identifying optimal formulations for upcycling processes.
Evaluating Combination of Solvent-Based Recycling and Mechanical Recycling of ABS Materials for Mitigating Plastic Pollution and Promoting Environmental Consciousness
Researchers evaluated a hybrid recycling approach combining solvent-based and mechanical recycling of acrylonitrile butadiene styrene (ABS) materials, blending 70% virgin ABS with 30% recycled ABS across three production cycles for wiring devices. Mechanical testing showed that recycled ABS blends maintained comparable performance to virgin material, supporting its viability for mass production.
Mechanical Properties and Degradation Rate of Poly(Sorbitol Adipate-Co-Dioladipate) Copolymers Obtained with a Catalyst-Free Melt Polycondensation Method
Researchers synthesized a new family of biodegradable polyester copolymers using non-toxic, metabolism-compatible building blocks including sorbitol and adipic acid without any metal catalysts. The materials showed tunable mechanical properties and degradation rates depending on their chemical composition. The study suggests these bio-based polymers could serve as environmentally friendly alternatives to conventional plastics that contribute to microplastic pollution.
Catalytic Amounts of an Antibacterial Monomer Enable the Upcycling of Poly(Ethylene Terephthalate) Waste
Scientists developed a new method to recycle PET plastic waste (commonly used in bottles) into high-value antibacterial material using only small amounts of a special monomer. This approach addresses both plastic pollution and the need for antimicrobial materials, while avoiding the biotoxicity problems of traditional metal-based antibacterial agents. The technique represents a promising way to upcycle plastic waste rather than simply discarding it.
Towards Sustainable Food Packaging: Mechanical Recycling Effects on Thermochromic Polymers Performance
Researchers examined how mechanical recycling affects the thermochromic properties and structural integrity of food packaging materials, finding that repeated recycling cycles degraded color-change performance and increased microplastic shedding from recycled packaging.
Novel robust upcycling approach for the manufacture of value-added polymers based on mixed (poly)urethane scraps
This study developed a novel process for recycling mixed polyurethane scraps into new value-added polymers. Upcycling thermoset plastics that are currently unrecyclable could prevent these materials from fragmenting into microplastics in the environment.
Utilization of plastic waste as replacement of natural aggregates in sustainable concrete: effects on mechanical and durability properties
Researchers tested concrete made with recycled polyethylene and PET plastic aggregates substituted for natural sand and gravel, finding that while plastic additions reduced compressive strength and increased water permeability, they improved impact resistance and chloride resistance, with PET concrete showing no microplastic leaching.
Polyesters and deep eutectic solvents: From synthesis through modification to depolymerization
This review examines how deep eutectic solvents, a class of greener chemical alternatives, can be used throughout the lifecycle of polyester plastics, from manufacturing to recycling. Researchers found these solvents show promise for catalyzing plastic depolymerization in closed-loop recycling systems at lower cost than traditional methods. The study is relevant to microplastic pollution because improving plastic recycling could help reduce the amount of polyester waste that breaks down into microplastics in the environment.
Preparation of high-performance waste polyvinyl chloride/paper biocomposites by hot pressing
Researchers created composite materials by hot-pressing waste PVC plastic with waste paper at different ratios, achieving materials with useful mechanical properties. Converting mixed plastic and paper waste into construction materials is one approach to reducing the environmental burden of plastic waste.
Strategic selection tool for thermoplastic materials in a renewable circular economy: Identifying future circular polymers
Researchers developed a strategic material selection tool to guide the transition toward a renewable circular economy for thermoplastics, helping identify which polymers can meet performance requirements while being decoupled from fossil feedstocks and compatible with biodegradation or closed-loop recycling.