DOI: 10.1039/d4gc00819g ISSN: 1463-9262

Chemical separation of polyurethane via acidolysis – combining acidolysis with hydrolysis for valorisation of aromatic amines

Thomas B. Bech, Bjarke S. Donslund, Steffan K. Kristensen, Troels Skrydstrup

Neat acidolysis of flexible PU foam with succinic acid is demonstrated to give quantitative imide formation and high-quality polyols. The easily separable imides are further converted to anilines which may re-enter the PU-value chain.

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