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Composition and structure of spontaneously adsorbed monolayers of n-perfluorocarboxylic acids on silver

✍ Scribed by Lai-Kwan Chau; Marc D. Porter

Publisher
Elsevier Science
Year
1990
Tongue
English
Weight
580 KB
Volume
167
Category
Article
ISSN
0009-2614

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✦ Synopsis

Monolayer films of n-perfluorocarboxylic acids (CF, ( CFZ ),COOH, where n =O-2, 5-8 ) have been formed by spontaneous adsorption at silver. Infrared reflection spectroscopy, optical ellipsometry, and contact angle measurements indicate that these films exhibit low surface free energies, that the carboxylic acid group is symmetrically bound at the silver substrate as a carboxylate bridging ligand, and that the structure is composed of tilted ( z 40" from the surface normal) perfluorocarbon chains and small structural defects.

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Formation and structure of a spontaneous
Formation and structure of a spontaneously adsorbed monolayer of arachidic on silver
✍ N.E. Schlotter; Marc D. Porter; T.B. Bright; David L. Allara πŸ“‚ Article πŸ“… 1986 πŸ› Elsevier Science 🌐 English βš– 533 KB

A stable monolayer assembly can be formed on silver by the spontaneous adsorption (SA) of arachidic acid (CH3(CHz)18COOH) from hexadecane. IR spectroscopy and optical ellipsometry indicate that the structure is simii to the Langmuir-Blodgett (LB) multilayer assembly of cadmium arachidate on silver.