Electron spin echo modulation study of AOT reverse micelles

Journal Article · Thu May 02 04:00:00 EDT 1991 · Journal of Physical Chemistry; (United States)

DOI:https://doi.org/10.1021/j100162a076· OSTI ID:5890617

Baglioni, P ^[1]; Nakamura, Hiroshi ^[2]; Kevan, L ^[3]

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1. Univ. of Udine (Italy)
2. Kyushu Univ., Fukuoka (Japan)
3. Univ. of Houston, TX (United States)

Electron spin echo deuterium modulation studies have been carried out for x-doxylstearic acid spin probes in frozen reversed micellar solutions of sodium bis(2-ethyl-1-hexyl) sulfosuccinate (AOT)/isooctane as a function of the water pool size with deuterium located in the isooctane or in the water. The results determine the probe location and conformation in the reverse micelle and the amount of water and isooctane penetration into the AOT interface. Modulation effects due to the interaction of the unpaired electron with deuterated isooctane or deuterated water show that the probes are in an extended conformation and are located at the interface of the reverse micelle. The results obtained are in good agreement with the current view of the structure of AOT reversed micelles in liquids and demonstrate at a molecular level that the micellar structure is retained upon fast freezing.

• OSTI ID: 5890617
• Journal Information: Journal of Physical Chemistry; (United States), Journal Name: Journal of Physical Chemistry; (United States) Vol. 95:9; ISSN 0022-3654; ISSN JPCHA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ALKANES
CARBOXYLIC ACIDS
CRYSTAL STRUCTURE
DATA
DEUTERIUM
ELECTRON SPIN RESONANCE
EXPERIMENTAL DATA
FREEZING
HYDROCARBONS
HYDROGEN COMPOUNDS
HYDROGEN ISOTOPES
INFORMATION
ISOTOPE EFFECTS
ISOTOPES
LIGHT NUCLEI
MAGNETIC RESONANCE
MICELLAR SYSTEMS
MICROSTRUCTURE
MOLECULAR STRUCTURE
MONOCARBOXYLIC ACIDS
NUCLEI
NUMERICAL DATA
OCTADECANOIC ACID
OCTANE
ODD-ODD NUCLEI
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXYGEN COMPOUNDS
RESONANCE
STABLE ISOTOPES
WATER