Electron spin echo modulation of doxylstearic acid probes of the surface and internal structure of lithium dodecyl sulfate micelles: comparison with sodium dodecyl sulfate and tetramethylammonium dodecyl sulfate micelles

Jones, R R.M.; Maldonado, R; Szajdzinska-Pietek, E; Kevan, L

doi:10.1021/j100278a032

Title: Electron spin echo modulation of doxylstearic acid probes of the surface and internal structure of lithium dodecyl sulfate micelles: comparison with sodium dodecyl sulfate and tetramethylammonium dodecyl sulfate micelles

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Abstract

Two-pulse electron spin echo modulation analyses of x-doxylstearic acid spin probes (x = 5, 7, 10, 12, and 16) in frozen lithium dodecyl sulfate (LDS) micelles in D/sub 2/O and lithium dodecyl-12,12,12-d/sub 3/ sulfate micelles in H/sub 2/O have been carried out. The results give information on the average conformation of the stearic acid chains and the distribution of D/sub 2/O and the -CD/sub 3/ end groups in the micellar aggregates. These are compared to data from dodecyl sulfate micelles with sodium or tetramethylammonium counterions (SDS and TMADS, respectively) which were studied previously in a similar fashion. The LDS micelles show a less compact and more hydrated headgroup region than SDS micelles. The -CD/sub 3/ surfactant end groups in LDS micelles are not concentrated at the micelle center but are broadly distributed throughout the micellar volume. The surface and internal structure of LDS micelles is quite comparable to that of TMADS micelles and is different from that of SDS micelles. 23 references, 2 figures.

Authors:: Jones, R R.M.; Maldonado, R; Szajdzinska-Pietek, E; Kevan, L

Publication Date:: Thu Mar 13 00:00:00 EST 1986

Research Org.:: Wake Forest Univ., Winston-Salem, NC

OSTI Identifier:: 5896884

DOE Contract Number:: AS05-80ER10745

Resource Type:: Journal Article

Journal Name:: J. Phys. Chem.; (United States)

Additional Journal Information:: Journal Volume: 90:6

Country of Publication:: United States

Language:: English

Subject:: 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; AMMONIUM COMPLEXES; COMPARATIVE EVALUATIONS; DODECANOIC ACID; MOLECULAR STRUCTURE; SURFACE PROPERTIES; LITHIUM COMPLEXES; OCTADECANOIC ACID; ACOUSTIC ESR; SODIUM COMPLEXES; SULFATES; EXPERIMENTAL DATA; HEAVY WATER; ISOTOPE EFFECTS; MICELLAR SYSTEMS; WATER; ALKALI METAL COMPLEXES; CARBOXYLIC ACIDS; COMPLEXES; DATA; ELECTRON SPIN RESONANCE; HYDROGEN COMPOUNDS; INFORMATION; MAGNETIC RESONANCE; MONOCARBOXYLIC ACIDS; NUMERICAL DATA; ORGANIC ACIDS; ORGANIC COMPOUNDS; OXYGEN COMPOUNDS; RESONANCE; SULFUR COMPOUNDS; 400301* - Organic Chemistry- Chemical & Physicochemical Properties- (-1987)

Citation Formats


                    Jones, R R.M., Maldonado, R, Szajdzinska-Pietek, E, and Kevan, L. Electron spin echo modulation of doxylstearic acid probes of the surface and internal structure of lithium dodecyl sulfate micelles: comparison with sodium dodecyl sulfate and tetramethylammonium dodecyl sulfate micelles.  United States: N. p., 1986. 
        Web.  doi:10.1021/j100278a032.

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                    Jones, R R.M., Maldonado, R, Szajdzinska-Pietek, E, & Kevan, L. Electron spin echo modulation of doxylstearic acid probes of the surface and internal structure of lithium dodecyl sulfate micelles: comparison with sodium dodecyl sulfate and tetramethylammonium dodecyl sulfate micelles.  United States.  https://doi.org/10.1021/j100278a032

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                    Jones, R R.M., Maldonado, R, Szajdzinska-Pietek, E, and Kevan, L. 1986.  
        "Electron spin echo modulation of doxylstearic acid probes of the surface and internal structure of lithium dodecyl sulfate micelles: comparison with sodium dodecyl sulfate and tetramethylammonium dodecyl sulfate micelles".  United States.  https://doi.org/10.1021/j100278a032.

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@article{osti_5896884,

  title        = {Electron spin echo modulation of doxylstearic acid probes of the surface and internal structure of lithium dodecyl sulfate micelles: comparison with sodium dodecyl sulfate and tetramethylammonium dodecyl sulfate micelles},

  author       = {Jones, R R.M. and Maldonado, R and Szajdzinska-Pietek, E and Kevan, L},

  abstractNote = {Two-pulse electron spin echo modulation analyses of x-doxylstearic acid spin probes (x = 5, 7, 10, 12, and 16) in frozen lithium dodecyl sulfate (LDS) micelles in D/sub 2/O and lithium dodecyl-12,12,12-d/sub 3/ sulfate micelles in H/sub 2/O have been carried out. The results give information on the average conformation of the stearic acid chains and the distribution of D/sub 2/O and the -CD/sub 3/ end groups in the micellar aggregates. These are compared to data from dodecyl sulfate micelles with sodium or tetramethylammonium counterions (SDS and TMADS, respectively) which were studied previously in a similar fashion. The LDS micelles show a less compact and more hydrated headgroup region than SDS micelles. The -CD/sub 3/ surfactant end groups in LDS micelles are not concentrated at the micelle center but are broadly distributed throughout the micellar volume. The surface and internal structure of LDS micelles is quite comparable to that of TMADS micelles and is different from that of SDS micelles. 23 references, 2 figures.},

  doi          = {10.1021/j100278a032},

  url          = {https://www.osti.gov/biblio/5896884},
  journal      = {J. Phys. Chem.; (United States)},
number       = ,

  volume       = 90:6,

  place        = {United States},

  year         = {Thu Mar 13 00:00:00 EST 1986},

  month        = {Thu Mar 13 00:00:00 EST 1986}

}

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