X-ray Scattering Studies of Long-Chain Alkanol Monolayers at the Water-Hexane Interface
Book
·
OSTI ID:1008373
X-ray reflectivity and interfacial tension measurements demonstrate that long-chain alkanol monolayers at the water-hexane interface exhibit a well defined chain disorder and partial hexane mixing into the monolayer, in contrast to alkanol monolayers at the water-vapor interface that consist of close-packed rigid rod molecules. At the water-hexane interface triacontanol molecules form a condensed phase with progressive disordering of the chain from the -CH{sub 2}OH to the -CH{sub 3} group. At this interface the density in the head-group region is 10 to 15% greater than bulk water, an effect not seen for the ordered monolayer at the water-vapor interface. Monolayers of shorter length alkanols (consisting of 20, 22, and 24 carbons) and variations with temperature are also discussed.
- Research Organization:
- Advanced Photon Source (APS), Argonne National Laboratory (ANL), Argonne, IL (US)
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 1008373
- Country of Publication:
- United States
- Language:
- ENGLISH
Similar Records
Tail Ordering Due to Headgroup Hydrogen Bonding Interactions in Surfactant Monolayers at the Water-Oil Interface
X-ray scattering from monolayers of F(CF{sub 2}){sub 10}(CH{sub 2}){sub 2}OH at the water{endash}(hexane solution) and water{endash}vapor interfaces
X-ray Reflectivity Study of the Adsorption of Azacrown Ether at Liquid-liquid Interface
Journal Article
·
Sat Dec 31 23:00:00 EST 2005
· J. Phys. Chem. B
·
OSTI ID:914222
X-ray scattering from monolayers of F(CF{sub 2}){sub 10}(CH{sub 2}){sub 2}OH at the water{endash}(hexane solution) and water{endash}vapor interfaces
Journal Article
·
Wed Mar 31 23:00:00 EST 1999
· Journal of Chemical Physics
·
OSTI ID:335582
X-ray Reflectivity Study of the Adsorption of Azacrown Ether at Liquid-liquid Interface
Journal Article
·
Tue Mar 16 00:00:00 EDT 2010
· Chemical Physics Letters
·
OSTI ID:1002297