Spectroscopic investigation of the mutual interactions between nonionic surfactant, hydrocarbon, and water
NMR, UV, and IR spectroscopy were used to determine the interactions in hydrocarbon solutions between polyethylene glycol alkyl ethers, water, and aromatic hydrocarbons. The results showed a concentration dependence for the site of benzene in benzene/surfactant solutions. At low concentrations, the benzene molecules were preferentially located adjacent to the surfactant oxyethylene chain with an even distribution along the chain. At high benzene concentrations, a positive concentration gradient was found toward the hydrocarbon end of the oxyethylene chain with an even distribution along the chain. At high benzene concentrations, a positive concentration gradient was found toward the hydrocarbon end of the oxyethylene chain. Addition of water increased this gradient except for the octaethylene glycol dodecyl ether; for this compound the preferential water location appeared to be toward the central part of the oxyethylene chain. 27 references.
- OSTI ID:
- 6170774
- Journal Information:
- J. Colloid Interface Sci.; (United States), Journal Name: J. Colloid Interface Sci.; (United States) Vol. 75:1; ISSN JCISA
- Country of Publication:
- United States
- Language:
- English
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37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400301 -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ALCOHOLS
AROMATICS
BENZENE
DISPLACEMENT FLUIDS
ETHERS
FLUIDS
GLYCOLS
HYDROCARBONS
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
INFRARED SPECTRA
MOLECULAR STRUCTURE
NMR SPECTRA
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
ORGANIC POLYMERS
OXYGEN COMPOUNDS
POLYETHYLENE GLYCOLS
POLYMERS
QUANTITY RATIO
SPECTRA
SPECTROSCOPY
STRUCTURAL CHEMICAL ANALYSIS
SURFACTANTS
ULTRAVIOLET SPECTRA
WATER