brush; electrografting; atomic force microscopy (AFM)
Abstract :
[en] The very first characterization of the structural properties of polymer films obtained by electrografting is reported. AFM-based force spectroscopy was used to investigate poly-N-succinimidyl acrylate (PNSA) layers electrografted directly from a silicon substrate. Quantitative analysis of compression profiles obtained in a good solvent and single molecule bridging interaction, in light of the Alexander-de Gennes model, gave access to the grafting density and degree of polymerization. A high swelling capacity has been evidenced. This report is the first evidence that polymers obtained by cathodic electrografting are in fact brush systems, and consequently the first evidence that a polymer brush can be obtained from a direct "grafting from" method, without any intermediate layer.
Disciplines :
Materials science & engineering Chemistry
Author, co-author :
Cuenot, Stéphane; Université catholique de Louvain (UCL) > Laboratory for Physics and Chemistry of Polymers (POLY) and Research Center on Micro- and Nanoscopic Materials and Electronic Devices (CeRMiN)
Gabriel, Sabine ; Université de Liège - ULiège > Department of chemistry > Center for Education and Research on Macromolecules (CERM)
Jérôme, Robert ; Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Jérôme, Christine ; Université de Liège - ULg > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Fustin, Charles-André; Université catholique de Louvain (UCL) > Chemistry of Inorganic and Organic Materials Unit (CMAT) and Research Center on Micro- and Nanoscopic Materials and Electronic Devices (CeRMiN)
Jonas, Alain M.; Université catholique de Louvain (UCL) > Laboratory for Physics and Chemistry of Polymers (POLY) and Research Center on Micro- and Nanoscopic Materials and Electronic Devices (CeRMiN)
Duwez, Anne-Sophie ; Université catholique de Louvain, Present: University of Liège > Department of Chemistry, Nanochemistry and molecular systems
Language :
English
Title :
First insights into electrografted polymers by AFM-based force spectroscopy
Publication date :
2006
Journal title :
Macromolecules
ISSN :
0024-9297
eISSN :
1520-5835
Publisher :
Amer Chemical Soc, Washington, United States - District of Columbia
BELSPO - SPP Politique scientifique - Service Public Fédéral de Programmation Politique scientifique F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
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