Article (Scientific journals)
Water-borne isocyanate-free polyurethane hydrogels with adaptable functionality and behavior
Bourguignon, Maxime; Thomassin, Jean-Michel; Grignard, Bruno et al.
2021In Macromolecular Rapid Communications, 42 (3), p. 2000482
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Keywords :
supercritical carbon dioxide; polyurethane
Abstract :
[en] Polyurethane hydrogels are attractive materials finding multiple applications in various sectors of prime importance; however, they are still prepared by the toxic isocyanate chemistry. Herein the facile and direct preparation in water at room temperature of a large palette of anionic, cationic, or neutral polyurethane hydrogels by a non‐isocyanate route from readily available diamines and new hydrosoluble polymers bearing cyclic carbonates is reported. The latter are synthesized by free radical polymerization of glycerin carbonated methacrylate with water‐soluble comonomers. The hydrogel formation is studied at different pH and its influence on the gel time and storage modulus is investigated. Reinforced hydrogels are also constructed by adding CaCl2 to the formulation that in‐situ generates CaCO3 particles. Thermoresponsive hydrogels are also prepared from new thermoresponsive cyclic carbonate bearing polymers. This work demonstrates that a multitude of non‐isocyanate polyurethane hydrogels are easily accessible under mild conditions without any catalyst, opening new perspectives in the field.
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
Thomassin, Jean-Michel ;  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
Vertruyen, Bénédicte  ;  University of Liège (ULiège), Complex and Entangled Systems from Atoms to Materials (CESAM), Group of Research in Energy and ENvironment from MATerials (Greenmat) and Laboratory of Structural Inorganic Chemistry (LCIS), 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-borne isocyanate-free polyurethane hydrogels with adaptable functionality and behavior
Publication date :
February 2021
Journal title :
Macromolecular Rapid Communications
ISSN :
1022-1336
eISSN :
1521-3927
Publisher :
John Wiley & Sons, United Kingdom
Volume :
42
Issue :
3
Pages :
2000482
Peer reviewed :
Peer Reviewed verified by ORBi
Name of the research project :
BIODEC project
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
FEDER - Fonds Européen de Développement Régional [BE]
Région wallonne [BE]
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