Analysis of poly(ethylene oxide)-lithium/sodium dodecyl sulfate interactions by electron paramagnetic resonance simulation for 16-doxyl stearic acid


The interaction of lithium dodecyl sulfate (LiDS) and sodium dodecyl sulfate (SDS) with poly(ethylene oxide) (PEO) has been studied with 16-doxyl stearic acid (16-DS) in aqueous solution by electron paramagnetic resonance (EPR). The rotational correlation times τc and nitrogen hyperfine coupling constantsA N versus the surfactant concentration with and without PEO have been calculated for different concentrations of 16-DS by our single-domain simulation program and EPRSIM program. Since the results of single-domain simulations were insufficient in pronounced changing the interval of τc andA N values, spectra were also simulated with two and three domains to get better insight about domains. Better-fit results were found in these simulations. Data obtained from simulations revealed the effects of the polymer and surfactant counterion on the micelle formation and aggregation percentages. At about 8 mM SDS and about 12 mM LiDS concentrations, the presence of polymer provided more hydrophobic environment for 16-DS and this indicated that the location of the polymer was within the interface region. With the increase of the surfactant concentration, less hydrophobic environment was obtained for the nitroxide, which suggested a more open structure for the polymer-surfactant micelles.

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  1. 1.

    Goddard E.D.: J. Am. Oil. Chem. Soc.71, 1–16 (1994)

    Article  Google Scholar 

  2. 2.

    Breuer M.M., Robb I.D.: Chem. Ind.13, 530–535 (1972)

    Google Scholar 

  3. 3.

    Deo N., Somasundaran P.: Colloids Surf. B25, 225–232 (2002)

    Article  Google Scholar 

  4. 4.

    Brackman J.C., Engberts J.B.F.N.: Langmuir7, 2097–2102 (1991)

    Article  Google Scholar 

  5. 5.

    Thalberg K., van Stam J., Lindbald C., Almgren M., Lindman B.: J. Phys. Chem.95, 8975–8982 (1991)

    Article  Google Scholar 

  6. 6.

    Persson K., Wang G., Olofsson G.: J. Chem. Soc. Faraday Trans.90, 3555–3562 (1994)

    Article  Google Scholar 

  7. 7.

    Anthony O., Zana R.: Langmuir12, 3590–3597 (1996)

    Article  Google Scholar 

  8. 8.

    Dubin P.L., Gruber J.H., Xia J., Zhang H.: J. Colloid Interface Sci148, 35–41 (1992)

    Article  Google Scholar 

  9. 9.

    Hou Z., Li Z., Wang H.: J. Dispersion Sci. Technol.20, 1507–1516 (1999)

    Article  Google Scholar 

  10. 10.

    Kocherginsky N., Swartz H.M.: Nitroxide Spin Labels, Reactions in Biology and Chemistry, pp. 18–19. Boca Raton, Fla: CRC Press 1995.

    Google Scholar 

  11. 11.

    Witte F.M., Buwalda P.L., Engberts J.B.F.N.: Colloid Polym. Sci.265, 42–44 (1987)

    Article  Google Scholar 

  12. 12.

    Kang S.Y., Kevan L.: J. Phys. Chem.98, 7624–7627 (1994)

    Article  Google Scholar 

  13. 13.

    di Meglio J.M., Baglioni P.: J. Phys. Chem.98, 5478–5480 (1994)

    Article  Google Scholar 

  14. 14.

    Wang Y., Lu D., Yan, H.: J. Phys. Chem. B101, 3953–3956 (1997)

    Article  Google Scholar 

  15. 15.

    Hao J., Hu J., Shang S., Liu H.: J. Dispersion Sci. Technol.20, 1345–1357 (1999)

    Article  Google Scholar 

  16. 16.

    Dragutan I., Dragutan V., Caragheorgheopol A., Zarkidas A.K., Fischer H., Holffmann H.: Colloids Surf. A:183–185 767–776 (2001)

    Article  Google Scholar 

  17. 17.

    Griffiths P.C., Cheung A.Y.F., Farley C., Paul A., Heenan R.K., King S.M., Petterson E., Stilbs P., Ranganathan R.: J. Phys. Chem. B108, 1351–1356 (2004)

    Article  Google Scholar 

  18. 18.

    Griffiths P.C., Paul A., Heenan R.K., Penfold J., Ranganathan R., Bales B.L.: J. Phys. Chem. B108, 3810–3816 (2004)

    Article  Google Scholar 

  19. 19.

    Doseva V., Yasina L.L., Aliev I.I., Vasserman A.M., Baranovskii V.Yu.: Colloid J.65, 562–566 (2003)

    Article  Google Scholar 

  20. 20.

    Morris J.F., Gelerinter E.: Polymer30, 165–169 (1988)

    Article  Google Scholar 

  21. 21.

    Witte F.M., Engberts J.B.F.N.: J. Org. Chem.53, 3085–3088 (1988)

    Article  Google Scholar 

  22. 22.

    Wasserman A.M., Kasaikin V.A., Timofeev V.P.: Spectrochim. Acta Part A54, 2295–2308 (1998)

    Article  Google Scholar 

  23. 23.

    Li J., Gelerinter E.: Polymer32, 963–966 (1992)

    Article  Google Scholar 

  24. 24.

    Wasserman A.M., Kasaikin V.A., Zakharova Yu.A., Aliev I.I., Baranovsky V.Yu., Doseva V., Yasina L.L.: Spectrochim. Acta Part A58, 1241–1255 (2002)

    Article  Google Scholar 

  25. 25.

    Sünnetçio glu M.M., Dadayli D., Sungur R., Bingöl G.: J. Plant Physiol.151, 196 (1997).

    Google Scholar 

  26. 26.

    Press W.H., Teukolsky S.A., Betterling W.T., Flannery B.P.: Numerical Recipes in Fortran 77, 2nd edn, pp. 404–405. Cambridge: Cambridge University Press 1999.

    Google Scholar 

  27. 27.

    Filipič B., Štrancar J.: Appl. Soft Comput.1, 83–90 (2001)

    Article  Google Scholar 

  28. 28.

    Pearce L.E., Davis E.A., Gordon J., Miller G.: Food Microstruct4, 83–88 (1990)

    Google Scholar 

  29. 29.

    Berliner L.J.: Spin Labelling Theory and Applications, pp. 29–30. New York: Academic Press 1976.

    Google Scholar 

  30. 30.

    Kivelson D.: J. Chem. Phys.33, 1094–1106 (1960)

    Article  ADS  Google Scholar 

  31. 31.

    Windle J.J.: J. Magn. Reson.45, 432–439 (1981)

    Google Scholar 

  32. 32.

    Martinie J., Michon J., Rassat A.: J. Am. Chem. Soc.97, 1818–1823 (1975)

    Article  Google Scholar 

  33. 33.

    Kuznetsov A.N., Wasserman A.M., Volkov A.U., Korst N.M.: Chem. Phys. Lett.12, 103–106 (1971)

    Article  ADS  Google Scholar 

  34. 34.

    Štrancar J., šentjurc M., Schara M.: J. Magn. Reson142, 254–265 (2000)

    Article  ADS  Google Scholar 

  35. 35.

    Clint J.H.: Surfactant Aggregation, pp. 105–112. New York: Chapman and Hall 1992.

    Google Scholar 

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Demir, K., Dadayli Paktaş, D. Analysis of poly(ethylene oxide)-lithium/sodium dodecyl sulfate interactions by electron paramagnetic resonance simulation for 16-doxyl stearic acid. Appl. Magn. Reson. 29, 627 (2005).

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  • Electron Paramagnetic Resonance
  • Sodium Dodecyl Sulfate
  • Surfactant Concentration
  • Nitroxide
  • Spin Label