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Novel promising way to synthesize non-isocyanate polyurethanes (NIPUs) for innovative coating applications against corrosion protection of metal surfaces
Panchireddy, Satyannarayana; 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] Polyurethanes (PUs) are one of the most widely used polymeric materials with applications in automotive, as sealants, adhesives, decorative, aircraft topcoats, for coatings or as foams for thermal and/or acoustic insulation. Industrially, PUs are produced by copolymerization between polyols and polyisocyanates. Because of the toxicity issues related to the use of isocyanates, there is a need to develop greener and safer route to produce such polymers. This study reports on the synthesis of new sustainable isocyanates-free PU (NIPU) coatings for aluminium anticorrosion. In a first step, bio- and CO2-sourced cyclic carbonates monomers were synthesized by coupling of epoxydized vegetable oils with CO2 using a new efficient bicomponent organocatalyst. In second step formulations including cyclic carbonates/amines/additives were optimized to produce highly adhesive cross-linked NIPU coatings that show good resistance against solvents and long-term barriers preventing the corrosion of the aluminiumsubstrate
Research center :
Center for Education and Research on Macromolecules (CERM)
Disciplines :
Materials science & engineering
Chemistry
Author, co-author :
Panchireddy, Satyannarayana ;  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)
Alexis, Renaud;  University of Mons (UMONS), Department of materials science, Materials Engineering Research Center (CRIM)
Olivier, Marjorie;  University of Mons (UMONS), Department of materials science, Materials Engineering Research Center (CRIM)
Poorteman, Marc;  University of Mons (UMONS), Department of materials science, Materials Engineering Research Center (CRIM)
Detrembleur, Christophe ;  University of Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Jérôme, Christine  ;  University of Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Language :
English
Title :
Novel promising way to synthesize non-isocyanate polyurethanes (NIPUs) for innovative coating applications against corrosion protection of metal surfaces
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 :
Flycoat project
CO2Green project
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
Walloon region [BE]
Commentary :
This poster was presented by Satyannarayana Panchireddy
Available on ORBi :
since 24 October 2016

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