Article (Scientific journals)
Water‐induced self‐blown non‐isocyanate polyurethane foams
Bourguignon, Maxime; Grignard, Bruno; Detrembleur, Christophe
2022In Angewandte Chemie International Edition, 61 (51), p. 202213422
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Keywords :
foam; polyurethane; carbon dioxide
Abstract :
[en] For 80 years, polyisocyanates and polyols were central building blocks for the industrial fabrication of polyurethane (PU) foams. By their partial hydrolysis, isocyanates release CO 2 that expands the PU network. Substituting this toxic isocyanate-based chemistry by a more sustainable variant – that in-situ forms CO 2 by hydrolysis of a comonomer - is urgently needed for producing greener cellular materials. Herein, we report a facile, up-scalable process, potentially compatible to existing infrastructures, to rapidly prepare water-induced self-blown non-isocyanate polyurethane (NIPU) foams. We show that formulations composed of poly(cyclic carbonate)s and polyamines furnish rigid or flexible NIPU foams by partial hydrolysis of cyclic carbonates in the presence of a catalyst. By utilizing readily available low cost starting materials, this simple but robust process gives access to greener PU foams, expectedly responding to the sustainability demands of many sectors.
Research center :
Center for Education and Research on Macromolecules (CERM)
Complex and Entangled Systems from Atoms to Materials (CESAM) Research Unit
Disciplines :
Materials science & engineering
Chemistry
Author, co-author :
Bourguignon, Maxime ;  University of Liège (ULiège), Complex and Entangled Systems from Atoms to Materials (CESAM) Research Unit, Center for Education and Research on Macromolecules (CERM), Belgium
Grignard, Bruno ;  University of Liège (ULiège), Complex and Entangled Systems from Atoms to Materials (CESAM) Research Unit, Center for Education and Research on Macromolecules (CERM), Belgium
Detrembleur, Christophe ;  University of Liège (ULiège), Complex and Entangled Systems from Atoms to Materials (CESAM) Research Unit, Center for Education and Research on Macromolecules (CERM), Belgium
Language :
English
Title :
Water‐induced self‐blown non‐isocyanate polyurethane foams
Publication date :
19 December 2022
Journal title :
Angewandte Chemie International Edition
ISSN :
1433-7851
eISSN :
1521-3773
Publisher :
Wiley, Weinheim, Germany
Volume :
61
Issue :
51
Pages :
e202213422
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
F.R.S.-FNRS - Fund for Scientific Research [BE]
Walloon region [BE]
The " ECOFOAM " project in the frame of the "WIN2WAL" program
Available on ORBi :
since 30 November 2022

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