| Abstract
| - Self-assembled monolayers composed of disulfides with asymmetric functional groups (A−S−S−B) havebeen investigated on gold surfaces. The two coexisting functional groups, A and B, are linear hydrocarbonand semifluorinated hydrocarbon chains. Mixtures of two thiols with the same corresponding functionalgroups have also been investigated for comparison. The absence of island formation in disulfide-basedSAMs supports the premise that not only are the S−S bonds intact in the solution during the self-assemblyprocess, but that the adsorbed molecules also have a small lateral diffusion constant. Results from contactangle, FTIR, Raman, and XPS measurements are supportive of this conclusion.
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