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The Chemical Recycling of PLA: A Review
Open accessAbstract
Plastics are an indispensable material with numerous benefits and advantages compared to traditional materials, such as glass and paper. However, their widespread use has caused significant environmental pollution and most plastics are currently nonrenewable. Biobased polymers represent an important step for tackling these issues, however, the end-of-life disposal of such materials needs to be critically considered to allow for a transition to a circular economy for plastics. Poly(lactic acid) (PLA) is an important example of a biobased polymer, which is also biodegradable. However, industrial composting of PLA affords water and carbon dioxide only and in the natural environment, PLA has a slow biodegradation rate. Therefore, recycling processes are important for PLA, particularly chemical recycling, which affords monomers and useful platform chemicals, maintaining the usefulness and value of the material. This review covers the different methods of PLA chemical recycling, highlighting recent trends and advances in the area.
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“LL, GG and Cap are all lactones but they show very different reactivities in the ring‐opening polymerization. [16]”
From Master of Chaos and Order: Opposite Microstructures of PCL‐co‐PGA‐co‐PLA Accessible by a Single Catalyst** (2022) · cites this paper as [16]
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Metadata
- Authors
- McKeown, P., & Jones, M. D.
- Affiliations
- University of Bath (GB)
- Corresponding author
- McKeown, Paul
- Jones, Matthew D.
- Venue
- Sustainable Chemistry
- Publisher
- MDPI AG
- Published
- 2020-05-02
- Volume
- 1
- Issue
- 1
- Pages
- 1-22
- ISSN
- 2673-4079 (ISSN-L)
- OpenAlex
- W3021978864
- Cited by
- 294
- References
- 150
- Citations by year
- 2026: 41 · 2025: 66 · 2024: 49 · 2023: 67 · 2022: 49 · 2021: 19 · 2020: 3
- FWCI
- 2.31
- Type
- journal article
- Language
- en
- Open access
- gold
- dx.doi.org
- Licence
- Locations
- Sustainable Chemistry (publishedVersion, cc-by)
- Funders
- Engineering and Physical Sciences Research Council (EP/P016405/1)
- Topics
- Physical Sciences › Materials Science › Biomaterials › biodegradable polymer synthesis and properties
- Physical Sciences › Materials Science › Polymers and Plastics › Polymer crystallization and properties
- Physical Sciences › Environmental Science › Waste Management and Disposal › Waste Management and Recycling
- Keywords
- polylactic acid, chemical recycling, bio-based polymers, biodegradable plastics, monomer recovery, circular economy, plastic waste, end-of-life plastics, composting, biodegradation
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