Circular Plastics Technologies: Depolymerization of Polymers Into Parent Monomers

Knauer, Katrina; Higginson, Cody; Liang, Yuanzhe; Lee, Minjung

doi:10.1515/psr-2023-0014

Circular Plastics Technologies: Depolymerization of Polymers Into Parent Monomers

Journal Article · Thu Aug 24 04:00:00 EDT 2023 · Physical Sciences Reviews

DOI:https://doi.org/10.1515/psr-2023-0014· OSTI ID:2429701

; Higginson, Cody; Liang, Yuanzhe; Lee, Minjung

While most commodity plastics were not designed to easily depolymerize, some common plastics can be broken down into their parent monomers in the presence of heat, pressure, catalysts, and/or solvent. Here, we provide a high-level overview of the depolymerization technologies that have been studied and/or scaled as promising monomer-loop recycling processes for selective plastic waste streams. Namely, commodity plastics that are considered unzippable/depolymerizable include polyethylene terephthalate, polyamides, polymethyl methacrylate, and polystyrene. Monomer-loop recycling technologies are one of several pathways toward a circular economy for plastics.

Research Organization:: National Renewable Energy Laboratory (NREL), Golden, CO (United States)

Sponsoring Organization:: USDOE National Renewable Energy Laboratory (NREL)

DOE Contract Number:: AC36-08GO28308

OSTI ID:: 2429701

Report Number(s):: NREL/JA-2800-90901; MainId:92679; UUID:3ca228e2-c74d-48ee-82c7-8e629f5a8c6e; MainAdminId:73371

Journal Information:: Physical Sciences Reviews, Journal Name: Physical Sciences Reviews Journal Issue: 7 Vol. 9

Country of Publication:: United States

Language:: English

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