ORBi: Grignard Bruno - Preparation of living polymer microspheres by dispersion atom transfer radical polymerization in scCO2 using fluorinated macroligands

Reference : Preparation of living polymer microspheres by dispersion atom transfer radical polymeriz...


	Document type :	Scientific congresses and symposiums : Poster
	Discipline(s) :	Physical, chemical, mathematical & earth Sciences : Chemistry Engineering, computing & technology : Materials science & engineering
	To cite this reference:	http://hdl.handle.net/2268/27519

Title :	Preparation of living polymer microspheres by dispersion atom transfer radical polymerization in scCO2 using fluorinated macroligands
Language :	English
Author, co-author :	Grignard, Bruno [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
	Calberg, Cédric [University of Liège (ULg) > Department of Applied Chemistry > Laboratory of Industrial Chemistry > >]
	Jérôme, Christine [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
	Detrembleur, Christophe [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Publication date :	19-May-2009
Peer reviewed :	No
On invitation :	No
Audience :	International
Event name :	9th International Symposium on Supercritical Fluids (ISSF 2009) : New Trends in Supercritical Fluids ; Energy, Materials, Processing
Event date :	18/05/2009 - 20/05/2009
Event organizer :	François Cansell
	Jacques Fages
	Jacques Mercadier
Event place (city) :	Arcachon
Event country :	France
Keywords :	[en] radical polymerization ; atom transfer radical polymerization (ATRP) ; green technology ; supercritical carbon dioxide
Abstract :	[en] Due to an increasing need for polymers with well-defined architecture (diblock-, graft-, star-shaped copolymers), molecular weight and/or functional end-groups, the use of controlled radical polymerization (CRP) in scCO2 has started to gain attention. Among all the controlled processes, Atom Transfer Radical Polymerization has emerged as a robust tool for the preparation of polymers with well-defined molecular weight, architecture and chain-end functionality. In a very recent paper, we reported the first efficient dispersion ATRP of methyl methacrylate (MMA) in scCO2 using a fluorinated polymeric ligand that had a dual role, i.e., the complexation of the copper salt and the stabilization of PMMA growing particles. In this contribution, we extended this new system to the dispersion ATRP of styrene, to the synthesis of diblock copolymers beads and the controlled synthesis of hyperbranched copolymers. Finally, because both ATRP and alkyne-azide Huisgen’s 1,3-dipolar cycloaddition relies on the use of a Cu(I) catalyst, synthesis of pyrene end-functionalized polymers by simultaneous dispersion ATRP and click reaction was also investigated in supercritical carbon dioxide.
Research units :	Center for Education and Research on Macromolecules (CERM)
Funders :	Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS ; Politique Scientifique Fédérale (Belgique) = Belgian Federal Science Policy ; The "Région Wallonne" in the frame of the "surfaces autonettoyantes et anticorrosion" program (CORRONET)
Target :	Researchers
Permalink :	http://hdl.handle.net/2268/27519
Commentary :	This poster was presented by Bruno Grignard

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	File	Commentary	Version	Size	Access
Open access	Grignard B 2009 ISSF Arcachon poster.pdf	poster	Publisher postprint	5.97 MB	View/Open
Open access	Grignard B 2009 ISSF Arcachon poster abstract.pdf	abstract	Author postprint	6.81 kB	View/Open

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