Reference : Dispersion Atom Transfer Radical Polymerization of vinyl monomers in supercritical carbo...
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Chemistry
Engineering, computing & technology : Materials science & engineering
http://hdl.handle.net/2268/5741
Dispersion Atom Transfer Radical Polymerization of vinyl monomers in supercritical carbon dioxide
English
Grignard, Bruno [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Jérôme, Christine mailto [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Calberg, Cédric mailto [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Jérôme, Robert mailto [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Wang, Wenxin [UniVersity of Nottingham, School of Chemistry, UK > > > >]
Howdle, Steven M [UniVersity of Nottingham, School of Chemistry, UK > > > >]
Detrembleur, Christophe mailto [University of LIège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
25-Nov-2008
Macromolecules
American Chemical Society
41
22
8575-8563
Yes (verified by ORBi)
International
0024-9297
Washington
DC
[en] green technology ; supercritical carbon dioxide ; radical polymerization ; atom transfer radical polymerization (ATRP)
[en] Controlled dispersion atom transfer radical polymerization (ATRP) of methyl methacrylate (MMA) was successfully carried out in supercritical carbon dioxide in the presence of aminated fluoropolymers. These materials played the dual role of macroligand for the copper bromide and also steric stabilizer to support formation of polymer microspheres. The livingness of the PMMA beads was confirmed by the one-pot two-step PMMA chain extension and the synthesis of poly(methyl methacrylate)-b-poly(2,2,2-trifluoroethyl methacrylate) (PMMA-b-PFMA) diblock copolymer in scCO2. Successful activator generated by electron transfer (AGET) for ATRP of MMA, using tin ethylhexanoate as a reducing agent, is also discussed, and the concept of dispersion ATRP of MMA was successfully extended to the controlled dispersion polymerization of styrene by ATRP leading to the formation of PS microparticles. Finally, due to the high solubility of the catalyst in scCO2, the purification of PMMA was investigated by supercritical fluid extraction, leading to the preparation of PMMA beads with low residual catalyst traces.
Center for Education and Research on Macromolecules (CERM)
Politique Scientifique Fédérale (Belgique) = Belgian Federal Science Policy ; Fonds pour la formation à la Recherche dans l'Industrie et dans l'Agriculture (Communauté française de Belgique) - FRIA ; Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS ; The Région Wallone in the frame of the Corronet project
Researchers
http://hdl.handle.net/2268/5741
10.1021/ma801474s
http://pubs.acs.org/doi/pdf/10.1021/ma801474s

File(s) associated to this reference

Fulltext file(s):

FileCommentaryVersionSizeAccess
Restricted access
Grignard B 2008 Macromolecules 8575.pdfPublisher postprint687.9 kBRequest copy

Bookmark and Share SFX Query

All documents in ORBi are protected by a user license.