Reference : Effective cobalt-mediated radical coupling (CMRC) of poly(vinylacetate) and poly(N-vi...
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Chemistry
Engineering, computing & technology : Materials science & engineering
http://hdl.handle.net/2268/26799
Effective cobalt-mediated radical coupling (CMRC) of poly(vinylacetate) and poly(N-vinylpyrrolidone) (co)polymer precursors
English
Debuigne, Antoine mailto [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Poli, Rinaldo [Université de Toulouse et Institut Universitaire de France (Paris) > > Laboratoire de Chimie de Coordination (Toulouse) > >]
De Winter, Julien [University of Mons (UMons) > Mass Spectrometry Center > Organic Chemistry Laboratory > >]
Laurent, Pascal mailto [University of Liège (ULg) > Chimie et bio-industries > Chimie biologique industrielle > >]
Gerbaux, Pascal [University of Mons (UMons) > Mass Spectrometry Center > Organic Chemistry Laboratory > >]
Wathelet, Jean-Paul mailto [University of Liège (ULg) > Chimie et bio-industries > Chimie générale et organique > >]
Jérôme, Christine mailto [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Detrembleur, Christophe mailto [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
23-Mar-2010
Macromolecules
American Chemical Society
43
6
2801-2813
Yes (verified by ORBi)
International
0024-9297
Washington
DC
[en] radical polymerization ; cobalt-mediated radical coupling (CMRC)
[en] Cobalt-mediated radical coupling (CMRC) is successfully applied to poly(vinyl acetate) (PVAc) and poly(N-vinylpyrrolidone) (PNVP) precursors for the first time. The coupling process is based on addition of isoprene onto polymer chains preformed by controlled radical polymerization with cobalt complexes (CMRP). The extents of coupling were high (>90%) to moderate (75-80%) for PVAc and PNVP precursors, respectively. Effects of the length of the polymer precursors and conditions used in the polymerization step on the coupling efficiency are discussed. Mass spectrometry (MS) and nuclear magnetic resonance (NMR) analyses conducted on the coupling products demonstrate the preferential insertion of two isoprene units in the final polymers. The CMRC mechanistic proposal, supported by DFT calculations, is based on this microstructure feature. Finally, illustration of the macromolecular engineering potential of this technique is given by the preparation of symmetrical PVAc-b-PNVP-b-PVAc triblock copolymers starting from the corresponding PVAc-b-PNVP-[Co] diblock copolymer.
Center for Education and Research on Macromolecules (CERM)
Politique Scientifique Fédérale (Belgique) = Belgian Federal Science Policy ; Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS ; The french "CNRS" and the IUF
Researchers
http://hdl.handle.net/2268/26799
10.1021/ma902610m
http://pubs.acs.org/doi/pdf/10.1021/ma902610m

File(s) associated to this reference

Fulltext file(s):

FileCommentaryVersionSizeAccess
Restricted access
Debuigne A 2010 Macromolecules 2801.pdfPublisher postprint3 MBRequest copy

Bookmark and Share SFX Query

All documents in ORBi are protected by a user license.