Thermal expansion coefficient of a water-supported perfluoro-n-eicosane monolayer
- Univ. of Chicago, IL (United States)
- Univ. of Illinois, Chicago, IL (United States)
We report the results of grazing incidence X-ray diffraction studies, as a function of temperature, of monolayers of perfluoro-n-eicosane. The experiments were undertaken to test the suggestion that there is a phase transition in this monolayer between 20 and 25{degree}C, in analogy with the transition which occurs in Teflon at about the same temperature. The issue is of importance with respect to determining whether description of the properties of a monolayer requires consideration of only the obvious quasi two dimensional character of the monolayer or requires inclusion of its three dimensional character. Our results do not support the existence of the suggested transition. 7 refs., 4 figs.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 91251
- Journal Information:
- Langmuir, Vol. 11, Issue 7; Other Information: PBD: Jul 1995
- Country of Publication:
- United States
- Language:
- English
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