Cover Feature: Recycling of Flexible Polyurethane Foam by Split‐Phase Alcoholysis: Identification of Additives and Alcoholyzing Agents to Reach Higher Efficiencies (ChemSusChem 15/2020). Issue 15 (21st July 2020)

• Record Type: Journal Article
• Authors: Vanbergen, Thomas; Verlent, Isabel; De Geeter, Joke; Haelterman, Bart; Claes, Laurens; De Vos, Dirk
• Is Part Of: ChemSusChem. Volume 13:Issue 15(2020)
• Page Start: 3728
• Page End: 3728
• Publication Date: 2020-07-21
• Subjects: alcoholysis -- foam -- hydrolysis -- polyurethane -- split-phase; Green chemistry -- Periodicals; Sustainable engineering -- Periodicals; Chemistry -- Periodicals; Chemical engineering -- Periodicals; 660
• DOI: 10.1002/cssc.202001696
• Languages: English
• ISSNs: 1864-5631

Abstract

Abstract : The Cover Feature shows the depolymerization of a flexible polyurethane foam in diglycerol as a novel, promising alcoholyzing agent. This results in a split‐phase system with the upper phase containing the apolar polyether polyol and the lower phase the excess diglycerol and aromatic products. The recycled polyether polyol is rendered suitable for the production of new flexible polyurethane foam by a single washing step with diglycerol. A first step towards the valorization of the lower phase was also taken by hydrolysis of the newly formed carbamates to toluenediamines. More information can be found in the Full Paper by T. Vanbergen et al .