Semifluorinated/Hydrogenated Alkylthiol Thin Films: A Comparison between Disulfides and Thiol Binary Mixtures

Tsao, Mei-Wei and Rabolt, John F. and Schönherr, Holger and Castner, D.G. (2000) Semifluorinated/Hydrogenated Alkylthiol Thin Films: A Comparison between Disulfides and Thiol Binary Mixtures. Langmuir, 16 (4). pp. 1734-1743. ISSN 0743-7463

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Abstract:	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.
Item Type:	Article
Copyright:	© 2000 American Chemical Society
Research Group:	Materials Science and Technology of Polymers (MTP)
Link to this item:	http://purl.utwente.nl/publications/59419
Official URL:	http://dx.doi.org/10.1021/la9906931
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