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Poster (Scientific congresses and symposiums)
Synthesis and characterization of non-isocyanate polyurethane (NIPU) hydrogels
Gennen, Sandro; Grignard, Bruno; Thomassin, Jean-Michel et al.
2016Journée de la Société Royale de Chimie (SRC)
 

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Keywords :
supercritical carbon dioxide; polyurethane
Abstract :
[en] Due to its good biocompatibility, biodegradation and excellent mechanical properties, polyurethane (PU) is a material of choice for biomedical applications (gloves, tubing, artificial membranes…) and, as hydrogels, it was used as wound dressing, soft contact lenses, drug delivery systems and scaffolds for tissue engineering. Classically, PU are synthesized by a step-growth polymerization between poly (di-)ols and poly (di-) isocyanates. Due to the toxicity of isocyanates, REACH regulations have changed and, today, there is a need to develop greener and safer route to produce isocyanate-free PUs. This contribution focus on the synthesis of NIPU hydrogels by copolymerizing a bifunctional CO2-sourced hydrophilic PEG bi-cyclic carbonate with diamines in presence of a cross- linker. The PEG bi-cyclic carbonates was prepared via a CO2/epoxide coupling reactions using a new efficient organocatalytic system based on the use of an ammonium salt (TBAI) in combination with a fluorinated alcohol.
Research center :
Center for Education and Research on Macromolecules (CERM)
Disciplines :
Chemistry
Materials science & engineering
Author, co-author :
Gennen, Sandro ;  University of Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Grignard, Bruno ;  University of Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Thomassin, Jean-Michel ;  University of Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Gilbert, Bernard ;  University of Liège (ULg), Department of Chemistry, Analytic Chemistry and Electrochemistry
Vertruyen, Bénédicte  ;  University of Liège (ULg), Department of Chemistry, Group of Research in Energy and ENvironment from MATerials (GREENMAT) - Laboratory of Structural Inorganic Chemistry (LCIS)
Jérôme, Christine  ;  University of Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Detrembleur, Christophe ;  University of Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Language :
English
Title :
Synthesis and characterization of non-isocyanate polyurethane (NIPU) hydrogels
Publication date :
13 October 2016
Event name :
Journée de la Société Royale de Chimie (SRC)
Event place :
Liège, Belgium
Event date :
13/10/2016
Name of the research project :
CO2Green project
Flycoat project
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
Walloon region [BE]
Commentary :
This poster was presented by Sandro Gennen
Available on ORBi :
since 24 October 2016

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