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Partitioning of small amphiphiles at surfactant bilayer/water interfaces: an avoided level crossing muon spin resonance study.
Journal article

Partitioning of small amphiphiles at surfactant bilayer/water interfaces: an avoided level crossing muon spin resonance study.

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  • 2005-04-20
Published in:
  • Langmuir : the ACS journal of surfaces and colloids. - 2004
Electron Spin Resonance Spectroscopy
Free Radicals
Membranes, Artificial
Mesons
Molecular Structure
Phenylethyl Alcohol
Surface Properties
Surface-Active Agents
Temperature
Water
English The temperature-dependent variation of local environment and reorientation dynamics of the small amphiphile 2-phenylethanol in lamellar phase dispersions of the dichain cationic surfactants, 2,3-diheptadecyl ester ethoxypropyl-1,1,1-trimethylammonium chloride (DHTAC) and dioctadecyldimethylammonium chloride (DODMAC), and the nonionic surfactant, tetra(ethylene glycol) n-dodecyl ether (C12E4), have been determined using avoided level crossing muon spin resonance spectroscopy (ALC-muSR). For cosurfactant radicals the hydrophobic or hydrophilic character of the surrounding media can be determined from their magnetic resonance signatures. Comparison of the three different bilayer-forming surfactant systems shows that the ALC-muSR technique is able to distinguish both major and subtle differences in the partitioning of the cosurfactant radicals between the different systems.
Language
  • English
Open access status
closed
Identifiers
Persistent URL
https://sonar.ch/global/documents/694
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