Journal ArticleDOI
Comparison of self-assembled monolayers on gold: coadsorption of thiols and disulfides
TLDR
In this paper, organic monolayers were formed on gold slides by adsorption from ethanol of HS(CH2)10CH2OH, HS( CH2) 10CH3, S(CH 2)10 CH2OH2, S((CH 2 )10CH 2OH2), S( CH 2) 10Ch32), and of binary mixtures of these molecules in which one component was terminated by a hydrophobic methyl group and one by hydrophilic alcohol group.Abstract:
: Ordered, organic monolayers were formed on gold slides by adsorption from ethanol of HS(CH2)10CH2OH, HS(CH2)10CH3, S(CH2)10CH2OH2, S(CH2)10Ch32, and of binary mixtures of these molecules in which one component was terminated by a hydrophobic methyl group and one by a hydrophilic alcohol group. The compositions of the monolayers were determined by X-ray photoelectron spectroscopy (XPS). Wettability was used as a probe of the chemical composition and structure of the surface of the monolayer. When monolayers were formed in solutions containing mixtures of a thiol and a disulfide, adsorption of the thiol was strongly preferred (approx. 75:1). Monolayer, Gold, Surface, Contact angles, Thiols, Disulfides.read more
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Self-assembled monolayers of thiolates on metals as a form of nanotechnology.
Journal ArticleDOI
Formation and Structure of Self-Assembled Monolayers.
TL;DR: Monolayers of alkanethiolates on gold are probably the most studied SAMs to date and offer the needed design flexibility, both at the individual molecular and at the material levels, and offer a vehicle for investigation of specific interactions at interfaces, and of the effect of increasing molecular complexity on the structure and stability of two-dimensional assemblies.
Journal ArticleDOI
Structure and growth of self-assembling monolayers
TL;DR: In this article, the structural phases and the growth of self-assembled monolayers (SAMs) are reviewed from a surface science perspective, with emphasis on simple model systems, and a summary of the techniques used for the study of SAMs is given.
Journal ArticleDOI
Controlling Polymer-Surface Interactions with Random Copolymer Brushes
TL;DR: In this article, a simple technique for precisely controlling the interfacial energies and wetting behavior of polymers in contact with solid surfaces is described, where end-functionalized statistical random copolymers of styrene and methylmethacrylate are synthesized, with the styrene fraction f varying from 0 to 1, and were end-grafted onto silicon substrates to create random polymers about 5 nanometers thick.
Journal ArticleDOI
X-ray photoelectron spectroscopy sulfur 2p study of organic thiol and disulfide binding interactions with gold surfaces
TL;DR: The presence of two sulfur species was detected in X-ray photoelectron spectroscopy (XPS) studies of thiol and disulfide molecules adsorbed onto gold surfaces as discussed by the authors.