Divergent Aminolysis Approach for Constructing Recyclable Self-Blown Nonisocyanate Polyurethane Foams
Open accessAbstract
We report an approach to fabricate self-blown nonisocyanate polyurethane (NIPU) foams by capitalizing on the divergent chemistries of amines with cyclic carbonates─creating the polymer network─and thiolactone─delivering in situ a thiol that generates the blowing agent (CO 2 ) by reaction with a cyclic carbonate. Multiple linkages (hydroxyurethanes, thioethers, and amides) are created within the polymer network by this domino process. This one-pot methodology furnishes flexible to rigid foams with open-cell morphology at moderate temperature. The foams are easily repurposed into films or structural composites by thermal treatment, showing the first example of recyclable NIPU foams. Remarkably, both the formation and the recycling of the thermoset foams do not necessarily require the use of a catalyst. This facile and robust process is opening new avenues for designing more sustainable PU foams and offers new end-of-life options by facile material repurposing.
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Cites
Mechanically Activated, Catalyst-Free Polyhydroxyurethane Vitrimers
Fortman, D. J., Brutman, J. P., Cramer, C. J., Hillmyer, M. A., & Dichtel, W. R. (2015) · Journal of the American Chemical Society · doi:10.1021/jacs.5b08084 · Cited by 811 · see citing works
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- Authors
- Monie, F., Grignard, B., & Detrembleur, C.
- Affiliations
- University of Liège (BE)
- Corresponding author
- Grignard, Bruno
- Detrembleur, Christophe
- Venue
- ACS Macro Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2022-01-20
- Volume
- 11
- Issue
- 2
- Pages
- 236-242
- ISSN
- 2161-1653 (ISSN-L)
- OpenAlex
- W4206495195
- Cited by
- 85
- References
- 1
- Citations by year
- 2026: 10 · 2025: 29 · 2024: 19 · 2023: 18 · 2022: 9
- FWCI
- 5.24
- Type
- journal article
- Language
- en
- Open access
- green
- orbi.uliege.be
- Licence
- Locations
- ACS Macro Letters (publishedVersion)
- PubMed (publishedVersion)
- Open Repository and Bibliography (University of Liège) (submittedVersion, other-oa)
- Funders
- H2020 Marie Sklodowska-Curie Actions (955700)
- Fonds De La Recherche Scientifique - FNRS (EOS project nO019618F (ID EOS: 30902231))
- Fonds Wetenschappelijk Onderzoek?Vlaanderen (FWO) (EOS project nO019618F (ID EOS: 30902231))
- Region Wallonne (Win2Wal project (ECOFOAM))
- Topics
- Physical Sciences › Chemical Engineering › Process Chemistry and Technology › Carbon dioxide utilization in catalysis
- Physical Sciences › Materials Science › Polymers and Plastics › Polymer Foaming and Composites
- Physical Sciences › Materials Science › Polymers and Plastics › Polymer composites and self-healing
- Keywords
- aminolysis, cyclic carbonates, thiolactones, cascade reactions, CO2 blowing agent, thioether linkage, amide linkage, catalyst-free polymerization
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