Nature Reviews Materials, volume 5, issue 7, pages 501-516

Chemical recycling to monomer for an ideal, circular polymer economy

Publication typeJournal Article
Publication date2020-04-14
Q1
Q1
SJR21.836
CiteScore119.4
Impact factor79.8
ISSN20588437
Materials Chemistry
Surfaces, Coatings and Films
Electronic, Optical and Magnetic Materials
Biomaterials
Energy (miscellaneous)
Abstract
The majority of post-consumer plastic waste is not recycled. Impediments to the recycling of commodity polymers include separation, impurities and degradation of the macromolecular structures, all of which can negatively affect the properties of recycled materials. An attractive alternative is to transform polymers back into monomers and purify them for repolymerization — a form of chemical recycling we term chemical recycling to monomer (CRM). Material recycled in this way exhibits no loss in properties, creating an ideal, circular polymer economy. This Review presents our vision for realizing a circular polymer economy based on CRM. We examine the energetics of polymerization and other challenges in developing practical and scalable CRM processes. We briefly review attempts to achieve CRM with commodity polymers, including through polyolefin thermolysis and nylon 6 ring-closing depolymerization, and closely examine the recent flourishing of CRM with new-to-the-world polymers. The benefits of heterocycle ring-opening polymerization are discussed in terms of synthetic control and kinetically accessible polymer-backbone functionality. Common chemical and structural characteristics of CRM-compatible ring-opening-polymerization monomers are identified, and the properties, benefits and liabilities of these recyclable polymers are discussed. We conclude with our perspective on the ideals and opportunities for the field. Unrecycled post-consumer plastic waste is an enormous, growing problem. Chemical recycling to monomer (CRM) delivers recycled material without degradation in properties. This Review assesses the viability of commercial polymer CRM, the flourishing of CRM with new polymers and opportunities for the field.
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Coates G. W., Getzler Y. D. Y. L. Chemical recycling to monomer for an ideal, circular polymer economy // Nature Reviews Materials. 2020. Vol. 5. No. 7. pp. 501-516.
GOST all authors (up to 50) Copy
Coates G. W., Getzler Y. D. Y. L. Chemical recycling to monomer for an ideal, circular polymer economy // Nature Reviews Materials. 2020. Vol. 5. No. 7. pp. 501-516.
RIS |
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RIS Copy
TY - JOUR
DO - 10.1038/s41578-020-0190-4
UR - https://doi.org/10.1038/s41578-020-0190-4
TI - Chemical recycling to monomer for an ideal, circular polymer economy
T2 - Nature Reviews Materials
AU - Coates, Geoffrey W.
AU - Getzler, Yutan D. Y. L.
PY - 2020
DA - 2020/04/14
PB - Springer Nature
SP - 501-516
IS - 7
VL - 5
SN - 2058-8437
ER -
BibTex |
Cite this
BibTex (up to 50 authors) Copy
@article{2020_Coates,
author = {Geoffrey W. Coates and Yutan D. Y. L. Getzler},
title = {Chemical recycling to monomer for an ideal, circular polymer economy},
journal = {Nature Reviews Materials},
year = {2020},
volume = {5},
publisher = {Springer Nature},
month = {apr},
url = {https://doi.org/10.1038/s41578-020-0190-4},
number = {7},
pages = {501--516},
doi = {10.1038/s41578-020-0190-4}
}
MLA
Cite this
MLA Copy
Coates, Geoffrey W., and Yutan D. Y. L. Getzler. “Chemical recycling to monomer for an ideal, circular polymer economy.” Nature Reviews Materials, vol. 5, no. 7, Apr. 2020, pp. 501-516. https://doi.org/10.1038/s41578-020-0190-4.
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