Comparison between CH3(CH2)15SH and CF3(CF2)3(CH2)11SH monolayers on electrodeposited silver.
In this paper, two monolayers self-assembled on a silver substrate are compared: a monolayer of n-hexadecanethiol and a monolayer of n-11-perfluorobutylundecanethiol. The protecting properties of both monolayers have been extensively studied by X-ray photoelectron spectroscopy, contact angle, polarization modulation infrared reflection absorption spectroscopy, conventional electrochemical techniques (polarization curves and electrochemical impedance spectroscopy), and scanning vibrating electrode technique. Both monolayers were successfully self-assembled but organization is slightly different, the fluorinated segment introduces small disorganization. Nevertheless, good homogeneous corrosion protection is observed for each monolayer.
Laffineur
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F
Laboratoire LISE, Département de Chimie, Facultés Universitaires Notre-Dame de la Paix, B-5000 Namur, Belgium.
Auguste
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D
Plumier
F
F
Pirlot
C
C
Hevesi
L
L
Delhalle
J
J
Mekhalif
Z
Z