Chemical separation of polyurethane <i>via</i> acidolysis – combining acidolysis with hydrolysis for valorisation of aromatic amines
Thomas Bech, Bjarke S. Donslund, Steffan K. Kristensen, Troels Skrydstrup
Abstract
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.
Topics & Concepts
ImideChemistryPolyurethaneHydrolysisValorisationSuccinic acidOrganic chemistryPolymer chemistryMarket economyEconomicsSynthetic Organic Chemistry MethodsCarbon dioxide utilization in catalysisInnovative Microfluidic and Catalytic Techniques Innovation