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Review
. 2023 May 8;62(20):e202218062.
doi: 10.1002/anie.202218062. Epub 2023 Mar 20.

Safer Polyurethane Foams with Cyclic Carbonates

Alexandra D Easley  1 , Alison Mangano  1 , Brett P Fors  1
Affiliations
Review

Safer Polyurethane Foams with Cyclic Carbonates

Alexandra D Easley et al. Angew Chem Int Ed Engl. .

Abstract

Polyurethanes (PUs) are a class of materials usually synthesized from isocyanates, diols, and water. Water is essential for producing carbon dioxide (CO2 ) which is used for the self-blowing of the foams. Due to safety concerns with the production of isocyanates, alternative chemistries have been evaluated and cyclic carbonate systems have shown great promise. In a recent advancement by Bourguignon, Grignard, and Detrembleur, a cyclic carbonate and diamine system is capable of generating CO2 for self-blowing through hydrolysis of the carbonate-based monomer. The authors demonstrate that with a simple variation of the diamine monomer a wide range of physical and thermo-mechanical properties were achievable. This work represents a significant step towards safer and more environmentally friendly PUs.

Keywords: Cyclic Carbonate; Isocyanate-Free; Polyhydroxyurethanes; Polyurethane Foam.

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