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Designed for Molecular Recycling: A Lignin-Derived Semi-aromatic Biobased Polymer
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Recyclable and (Bio)degradable Polyesters in a Circular Plastics Economy
Changxia Shi1, Ethan C Quinn1, Wilfred T Diment1
1Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States.
Chemical Reviews
|March 22, 2024
Summary
Polyesters with main-chain ester linkages are key to a sustainable plastics economy. Research focuses on recycling, biodegradation, and designing new polyesters for circularity.
Area of Science:
- Polymer Science
- Materials Science
- Sustainable Chemistry
Background:
- Polyesters with polar main-chain ester linkages are vital in the current plastics economy.
- These polyesters are crucial for a future circular plastics economy due to their sustainability and end-of-life options.
- The inherent ester bonds allow for chemical or biological cleavage, enabling effective waste management.
Purpose of the Study:
- To review recent advancements in polyester research for a circular economy.
- To highlight strategies for recycling, upcycling, and biodegradation of polyesters.
- To discuss the design of novel polyesters with intrinsic chemical recyclability and performance.
Main Methods:
- Comprehensive literature review of recent developments in polyester science.
- Analysis of case studies on legacy polyesters like PLA, PHAs, PET, PBS, and PBAT.
- Review of emerging polyesters with enhanced chemical recyclability.
Main Results:
- Significant research efforts are underway to improve polyester sustainability.
- Legacy polyesters are being addressed for better end-of-life management.
- New polyesters are being designed to match or exceed the performance of petroleum-based plastics.
Conclusions:
- Polyesters offer significant potential for a sustainable, circular plastics economy.
- Continued research is essential to overcome challenges and capitalize on opportunities in polyester design and management.
- The development of chemically recyclable polyesters is a key area for future innovation.
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