[en] A nickel (II) bromide catalyst immobilized onto crosslinked diphenylphosphinopolystyrene (PS-PPh3/NiBr2) was used for the synthesis of silicone-methacrylate copolymers by atom transfer radical polymerization (ATRP) of various methacrylate monomers using ?-bromide silicone chains as macroinitiator. The polymerization proved to be very well-controlled when a sufficient amount of soluble ligand, i.e., triphenylphosphine (PPh3), was added to the polymerization medium. Under these conditions, this technique efficiently led to the production of different copolymers with controlled compositions and molecular weights as well as narrow polydispersity indices (?<?1.5). The recovered copolymers proved to be almost free of catalyst residues. Indeed, inductively coupled plasma (ICP) analysis revealed a metal content lower than 100 ppm, representing only a few percent of the initial metal content in the polymerization medium.
Disciplines :
Chemistry
Author, co-author :
Duquesne, Emmanuël ; Université de Mons > Unités externes > Materia Nova ASBL
Habimana, J.
Degée, Philippe
Dubois, Philippe ; Université de Mons > Faculté des Sciences > Matériaux Polymères et Composites
Language :
English
Title :
Synthesis of silicone-methacrylate copolymers by ATRP using a nickel-based supported catalyst
Publication date :
05 July 2006
Journal title :
Macromolecular Chemistry and Physics
ISSN :
1022-1352
Publisher :
John Wiley & Sons, United Kingdom
Volume :
207
Issue :
13
Pages :
1116-1125
Peer reviewed :
Peer Reviewed verified by ORBi
Research unit :
S816 - Matériaux Polymères et Composites
Research institute :
R400 - Institut de Recherche en Science et Ingénierie des Matériaux
Commentary :
Lecture en ligne: http://onlinelibrary.wiley.com/doi/10.1002/macp.200600133/pdf
Publié en ligne le 28 juin 2006
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