Phase transition behavior of fluorinated monolayers at the water-hexane interface

Article Abstract:

X-ray surface scattering and interfacial tension measurements are used to study the solid-to-gas phase transition in soluble monolayers of F(CF sub 2)(sub 8)(CH sub 2)(sub 2)OH and F(CF sub 2)(sub 10)(CH sub 2)(sub 2)OH adsorbed at the water-hexane interface. The result indicate that hexane interface undergo a solid-to-gas phase transition in which lower temperature solid monolayer breaks into domains at the same temperature as the kink in the interfacial tension curve.

Industrial Gas Manufacturing, Industrial Organic Chemicals, Industrial gases, Cyclic Crude and Intermediate Manufacturing, Hexane, Fluorine, Chemical properties

---

Phase studies by diffusive interfacial transport using near-infrared analysis for water (DIT-NIR)

Article Abstract:

The DIT-NIR method is described and peak-area data on the bend-stretch combination band of water are used to determine composition. Peak-area data are obtained by using Fourier transform near-infrared (FT-NIR) microspectroscopy.

Usage, Optical properties, Fourier transform infrared spectroscopy

---

The "hidden" phase diagram of water + 3-methylpyridine at large absolute negative pressures

Article Abstract:

Phase transitions in nonpolymeric fluid mixtures at negative pressures are studied. The results reveal that there is an intimate relation between pressures and the isotopic content of the solvent.

Properties, Structure, Methyl groups, Methyl compounds

Similar abstracts:

• Abstracts: Dynamic and equilibrium surface pressure of adsorbed dodecanol monolayers at the air/water interface. Thermodynamic and textural characterization of DPPG phospholipid monolayers
• Abstracts: Alkane trapping onto structured alkane monolayers on Pt(111) at low temperature. Temperature dependent adsorption dynamics of CH4 on alkane-covered Pt (111)
• Abstracts: Structure and reactivity in Langmuir films of amphiphilic alkyl and thio-alkyl esters of alpha-amino acids at the air/water interface
• Abstracts: Enthalpy-entropy compensation in the effects of urea on hydrophobic interactions. Effect of urea and alkylureas on micelle formation by a nonionic surfactant with short hydrophobic tail at 25 degree C
• Abstracts: Electronic spectroscopy of the titanium centers in titanium silicate. Evolution of V(V) species an the formation of V-O-Si bonds during the synthesis of vanadia-silica sol-gel materials

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.