Polymer Degradation and Stability, Journal Year: 2024, Volume and Issue: 222, P. 110706 - 110706
Published: Feb. 17, 2024
Language: Английский
Chemical Reviews, Journal Year: 2024, Volume and Issue: 124(7), P. 4393 - 4478
Published: March 22, 2024
Polyesters carrying polar main-chain ester linkages exhibit distinct material properties for diverse applications and thus play an important role in today's plastics economy. It is anticipated that they will even greater tomorrow's circular economy focuses on sustainability, thanks to the abundant availability of their biosourced building blocks presence bonds can be chemically or biologically cleaved demand by multiple methods bring about more desired end-of-life plastic waste management options. Because this potential promise, there have been intense research activities directed at addressing recycling, upcycling biodegradation existing legacy polyesters, designing biorenewable alternatives, redesigning future polyesters with intrinsic chemical recyclability tailored performance rival commodity are either petroleum based and/or hard recycle. This review captures these exciting recent developments outlines challenges opportunities. Case studies poly(lactic acid), poly(3-hydroxyalkanoate)s, poly(ethylene terephthalate), poly(butylene succinate), poly(butylene-adipate presented, emerging recyclable comprehensively reviewed.
Language: Английский
Citations
98
Chemical Reviews, Journal Year: 2024, Volume and Issue: 124(5), P. 2617 - 2650
Published: Feb. 22, 2024
The societal importance of plastics contrasts with the carelessness which they are disposed. Their superlative properties lead to economic and environmental efficiency, but linearity puts climate, human health, global ecosystems at risk. Recycling is fundamental transitioning this linear model into a more sustainable, circular economy. Among recycling technologies, chemical depolymerization offers route virgin quality recycled plastics, especially when valorizing complex waste streams poorly served by mechanical methods. However, exists in interlinked system end-of-life fates, complementarity each approach key environmental, economic, sustainability. This review explores recent progress made five commercial polymers: poly(ethylene terephthalate), polycarbonates, polyamides, aliphatic polyesters, polyurethanes. Attention paid not only catalytic technologies used enhance efficiencies also interrelationship other systemic constraints imposed Novel polymers, designed for depolymerization, concisely reviewed terms their underlying chemistry potential integration current plastic systems.
Language: Английский
Citations
80
Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: 12(2), P. 112323 - 112323
Published: Feb. 25, 2024
Language: Английский
Citations
32
Recycling, Journal Year: 2024, Volume and Issue: 9(3), P. 37 - 37
Published: May 6, 2024
This review article gathers the most recent recycling technologies for thermoset and thermoplastic polymers. Results about existing experimental procedures their effectiveness are presented. For polymers, focuses mainly on fibre-reinforced polymer composites, with an emphasis epoxy-based systems carbon/glass fibres as reinforcement, due to environmental concerns of end-of-life management. Thermal processes (fluidised bed, pyrolysis) chemical (different types solvolysis) discussed. The combined (microwave, steam, ultrasonic assisted techniques) extraordinary attempts (electrochemical, biological, ionic liquids) analysed. Mechanical that leads downgrading materials is excluded. Insights also given upcycling methodologies have been implemented until now reuse fibres. As state-of-the-art approach common matrices presented, together appropriate additivation matrix upcycling. Mechanical, chemical, enzymatic described, among others. use composites quite new, thus, achievements With all above information, this extensive can serve a guide educational purposes, targeting students technicians in polymers recycling.
Language: Английский
Citations
16
Waste Management, Journal Year: 2025, Volume and Issue: 194, P. 290 - 297
Published: Jan. 21, 2025
Language: Английский
Citations
6
SmartMat, Journal Year: 2023, Volume and Issue: 4(4)
Published: March 29, 2023
Abstract The accumulation of plastic wastes in landfills and the environment threatens our public health, while leading to loss potential carbon resources. urgent necessary lies developing an energy‐saving environmentally benign approach upgrade into value‐added chemicals. Artificial photosynthesis holds ability realize upcycling by using endless solar energy under mild conditions, but remains initial stage for upgrading. In this review, we aim look critically at photocatalytic conversion from perspective resource reutilization. To begin with, present emerging routes highlight advantages artificial processing wastes. By parsing process, demonstrate currently available plastic, including photodegradation, tandem decomposition CO 2 reduction, selective oxidation, as well photoreforming plastic. This review concludes with a personal advances challenges conversion.
Language: Английский
Citations
29
Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 470, P. 144032 - 144032
Published: June 12, 2023
Language: Английский
Citations
29
Materials Horizons, Journal Year: 2023, Volume and Issue: 10(9), P. 3360 - 3368
Published: Jan. 1, 2023
Plastic represents an essential material in our society; however, a major imbalance between their high production and end-of-life management is leading to unrecovered energy, economic hardship, carbon footprint. The adoption of plastic recycling has been limited, mainly due the difficulty mixed plastics. Here, we report versatile organocatalyst for selective glycolysis diverse consumer plastics waste streams into valuable chemicals. developed selectively deconstructs condensation polymers at specific temperature, additives or other such as polyolefin cellulose can be readily separated from plastics, providing chemical path many existing today. Life Cycle Assessment indicates that various deconstructed monomers will result significant reduction greenhouse gas emissions energy input, opening new paradigm circularity toward net-zero society.
Language: Английский
Citations
28
Environmental Chemistry Letters, Journal Year: 2023, Volume and Issue: 22(1), P. 149 - 169
Published: Oct. 21, 2023
Language: Английский
Citations
24
Chinese Chemical Letters, Journal Year: 2023, Volume and Issue: 34(10), P. 108158 - 108158
Published: Jan. 26, 2023
Language: Английский
Citations
23