Semifluorinated/Hydrogenated Alkylthiol Thin Films: A Comparison between Disulfides and Thiol Binary Mixtures
| Autor: | David G. Castner, Holger Schönherr, John F. Rabolt, Mei Wei Tsao |
|---|---|
| Přispěvatelé: | Materials Science and Technology of Polymers |
| Rok vydání: | 2000 |
| Předmět: |
chemistry.chemical_classification
IR-59419 Surfaces and Interfaces Condensed Matter Physics Contact angle symbols.namesake Hydrocarbon chemistry X-ray photoelectron spectroscopy Monolayer Polymer chemistry Electrochemistry symbols Thiol Organic chemistry Molecule General Materials Science Fourier transform infrared spectroscopy Raman spectroscopy Spectroscopy |
| Zdroj: | Langmuir, 16(4), 1734-1743. American Chemical Society |
| ISSN: | 0743-7463 |
| DOI: | 10.1021/la9906931 |
| Popis: | Self-assembled monolayers composed of disulfides with asymmetric functional groups (A-S-S-B) have been investigated on gold surfaces. The two coexisting functional groups, A and B, are linear hydrocarbon and semifluorinated hydrocarbon chains. Mixtures of two thiols with the same corresponding functional groups have also been investigated for comparison. The absence of island formation in disulfide-based SAMs supports the premise that not only are the S-S bonds intact in the solution during the self-assembly process, but that the adsorbed molecules also have a small lateral diffusion constant. Results from contact angle, FTIR, Raman, and XPS measurements are supportive of this conclusion. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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