ORBi: Baute Noëlle - Electrografting of acrylic and methacrylic monomers onto metals: influence of the relative polarity and donor-acceptor properties of the monomer and the solvent

Reference : Electrografting of acrylic and methacrylic monomers onto metals: influence of the relati...


	Document type :	Scientific journals : Article
	Discipline(s) :	Engineering, computing & technology : Materials science & engineering Physical, chemical, mathematical & earth Sciences : Chemistry
	To cite this reference:	http://hdl.handle.net/2268/4338

Title :	Electrografting of acrylic and methacrylic monomers onto metals: influence of the relative polarity and donor-acceptor properties of the monomer and the solvent
Language :	English
Author, co-author :	Baute, Noëlle [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
	Teyssié, Philippe [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
	Martinot, Lucien [University of Liège (ULg) > Department of Chemistry > Laboratory of Analytical Chemistry and Radiochemistry > >]
	Mertens, Marc [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
	Dubois, Philippe [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
	Jérôme, Robert [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Publication date :	Nov-1998
Journal title :	European Journal of Inorganic Chemistry
Publisher :	Wiley VCH Verlag
Volume :	1998
Issue/season :	11
Pages :	1711-1720
Audience :	International
ISSN :	1434-1948
Keywords :	[en] electropolymerization ; electrografting
Abstract :	[en] The possibility of grafting a series of alkyl polyacrylates and polymethacrylates onto a nickel cathode by electropoly-merization of the parent monomers has been investigated and has emphasized the critical importance of the solvent used. Indeed, the intensity of the inhibition peak, which is the electrochemical mark of the cathode passivation as result of the polymer grafting, clearly depends on both the polarity and the donor-acceptor properties of the solvent. The Gutmann concept is used to account for these experimental results. An increase in the donicity of the solvent used for the electrochemical medium has allowed, for the very first time, several polyacrylates and polymethacrylates [such as poly(ethyl acrylate), poly(methyl methacrylate), and poly(2-trimethylsilyloxyethyl methacrylate)] to be electrografted onto Ni. This observation is consistent with a competition process between the monomer and the solvent for being adsorbed on the cathode and amassing in its very close vicinity. The outcome of this competition is controlled by the relative polarity (in case of low donicity) and the relative donor-acceptor properties (when the difference is high enough) of the monomer/solvent pair, and by the monomer concentration (in case of weak competition). A semiquantitative relationship has also been observed between the monomer ability to be electrografted and the electron-accepting character of the vinyl β-carbon atom as measured by 13C NMR.
Research units :	Center for Education and Research on Macromolecules (CERM)
Funders :	Cockerill Sambre ; Politique Scientifique Fédérale (Belgique) = Belgian Federal Science Policy
Target :	Researchers
Permalink :	http://hdl.handle.net/2268/4338
DOI :	10.1002/(SICI)1099-0682(199811)1998:11<1711::AID-EJIC1711>3.0.CO;2-X
Other URL :	http://www3.interscience.wiley.com/cgi-bin/fulltext/27788/PDFSTART

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