Article (Scientific journals)
Stability of self-assembled monolayers of organothiol mono and bipode on copper in presence of another organothiol solution
Denayer, Jessica; Delhalle, J.; Mekhalif, Z.
2012In Thin Solid Films, 520 (6), p. 2017-2021
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Keywords :
Alkanethiol; Copper; Dithiocarboxylic acid; Self-assembled monolayers; Self-exchange; Stability; Alkanethiols; Dithiol molecules; Dithiols; Metallic substrate; Organothiols; Poor stability; Sams; Thiol molecules; Coatings; Convergence of numerical methods; Molecules; Substrates; Self assembled monolayers
Abstract :
[en] The stability of alkanethiol self-assembled monolayers (SAMs) on metallic substrates is an important aspect for further application. Some studies point out the poor stability of this coating and the displacement of alkanethiol from the monolayer by immersion in another alkanethiol solution. The aim of this work consists in a comparative investigation of self-exchange of three organothiols: 11-perfluorobutyl-1-thiol-undecane (or R fSH), 2-dodecylpropane-1,3- dithiol (or R(SH) 2) and n-decanedithiocarboxylic (or RS 2H). The immersion of RS 2H monolayer into R fSH solution (first approach) leads to the incorporation of thiol molecules into the defects of the initial SAMs followed by the displacement of RS 2H molecules by R fSH. While for R fSH SAM in presence of R(SH) 2 solution (second approach), longer time of immersion is required to observe the incorporation of dithiol molecules into the coating as well as the displacement of thiol molecules. © 2011 Elsevier B.V. All rights reserved.
Disciplines :
Chemistry
Author, co-author :
Denayer, Jessica ;  Université de Liège - ULiège > Département de chimie (sciences) > LCIS - GreenMAT
Delhalle, J.;  Laboratory of Chemistry and Electrochemistry of Surfaces, Facultés Universitaires Notre-Dame de la Paix, Rue de Bruxelles 61, B-5000 Namur, Belgium
Mekhalif, Z.;  Laboratory of Chemistry and Electrochemistry of Surfaces, Facultés Universitaires Notre-Dame de la Paix, Rue de Bruxelles 61, B-5000 Namur, Belgium
Language :
English
Title :
Stability of self-assembled monolayers of organothiol mono and bipode on copper in presence of another organothiol solution
Publication date :
2012
Journal title :
Thin Solid Films
ISSN :
0040-6090
Publisher :
Elsevier Science
Volume :
520
Issue :
6
Pages :
2017-2021
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 14 February 2013

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