Novel Approach for Metallic Surface-Initiated Atom Transfer Radical Polymerization Using Electrografted Initiators Based on Aryl Diazonium Salts

Novel Approach for Metallic Surface-Initiated Atom Transfer Radical Polymerization Using Electrografted Initiators Based on Aryl Diazonium Salts

This paper reports on the preparation of poly(methyl methacrylate) (PMMA), poly(n-butyl acrylate) (PBA), and polystyrene (PS) brushes at the surface of conducting materials that were modified by the electrochemical reduction of a brominated aryl diazonium salt BF4 -, +N2−C6H4−CH(CH3)−Br (D1). The gr...

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Bibliographic Details
Published in:Langmuir Vol. 21; no. 10; pp. 4686 - 4694
Main Authors: Matrab, Tarik, Chehimi, Mohamed M, Perruchot, Christian, Adenier, Alain, Guillez, Alexandrine, Save, Maud, Charleux, Bernadette, Cabet-Deliry, Eva, Pinson, Jean
Format: Journal Article
Language:English
Published: Washington, DC American Chemical Society 10-05-2005
Subjects:
Chemical Sciences
Chemistry
Exact sciences and technology
General and physical chemistry
Polymers
Measurement
Atomic force microscopy
Infrared reflection
Conducting material
Water drop
Film
Infrared absorption
Methyl methacrylate polymer
Iron
X ray
Electrodes
Chemical reduction
Wettability
Photoelectron spectrometry
Styrene polymer
Monomer
Modified material
Chemical structure
Polymerization
Polymer
Transition metal
Contact angle
Infrared spectrometry
Preparation
Electrochemistry
Aryl
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Summary:This paper reports on the preparation of poly(methyl methacrylate) (PMMA), poly(n-butyl acrylate) (PBA), and polystyrene (PS) brushes at the surface of conducting materials that were modified by the electrochemical reduction of a brominated aryl diazonium salt BF4 -, +N2−C6H4−CH(CH3)−Br (D1). The grafted organic species −C6H4−CH(CH3)−Br was found to be very effective in initiating atom transfer radical polymerization (ATRP) of vinyl monomers. This novel approach combining diazonium salts and ATRP allowed PMMA, PBA, and PS brushes to be grown from the surface of iron electrodes. The polymer films were characterized in terms of their chemical structure by infrared reflection absorption spectroscopy and X-ray photoelectron spectroscopy. Atomic force microscopy studies indicated that the polymer brushes are densely packed. Contact angle measurements of water drops on PS and PMMA brushes were 88.1 ± 2.0 and 70.3 ± 2.1°, respectively, which is consistent with the published wettability data for the corresponding polymer sheets.
Bibliography:ark:/67375/TPS-VRVKMLZD-C
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ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0743-7463
1520-5827
DOI:10.1021/la046912m