Abstract
Structures of complexes formed in aqueous solutions by some anionic polyelectrolytes (double and single stranded (ds and ss) DNA, poly(vinyl sulfonate) (PVS), and poly(styrene sulfonate) (PSS)) with a cationic surfactant system consisting of cetyltrimethylammonium bromide (CTAB) and sodium 3-hydroxy-2-naphthoate (SHN) have been determined using small angle X-ray diffraction. All complexes are found to have a two-dimensional (2-D) hexagonal structure at low SHN concentrations. Analysis of the diffraction data shows that the ds DNA—CTAB complex has an intercalated structure, with each DNA strand surrounded by three cylindrical micelles. On increasing SHN concentration, DNA—CTAB—SHN complexes exhibit a hexagonal-to-lamellar transition, whereas PVS complexes show a hexagonal → centered rectangular → lamellar transition. PSS complexes show yet another sequence of structures. These results indicate the significant influence of the chemical nature of the polyelectrolyte on the structure of the complexes.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
See, for example,Interactions of surfactants with polymers and proteins edited by E D Goddard and K P Ananthapadmanabhan (CRC Press, Boca Raton, 1993)
F Oosawa,J. Polym. Sci. 23, 421 (1957)
G S Manning,J. Chem. Phys. 51, 924 (1969)
R Bruinsma,Euro. Phys. J. B4, 75 (1998)
D Harries, S May, W M Gelbart and A Ben-Shaul,Biophys. J. 75, 159 (1998)
J O Rädler, I Koltover, T Salditt and C R Safinya,Science 275, 810 (1997)
I Koltover, T Salditt, J O Rädler and C R Safinya,Science 281, 78 (1998)
K Thalberg, B Lindman and K Bergfeldt,Langmuir 7, 2893 (1991)
P Ilekti, L Piculell, F Tournilhac and B Cabane,J. Phys. Chem. B102, 344 (1998)
P Ilekti, T Martin, B Cabane and L Piculell,J. Phys. Chem. B103, 9831 (1999)
S Zhou, F Yeh, C Burger and B Chu,J. Phys. Chem. B103, 2107 (1999)
R Krishnaswamy, P Mitra, V A Raghunathan and A K Sood, (to appear inEurophys. Lett.)
A Svensson, L Piculell, B Cabane and P Ilekti,J. Phys. Chem. B106, 1013 (2002)
B K Mishra, S D Samant, P Pradhan, S B Mishra and C Manohar,Langmuir 9, 894 (1993)
K Horbaschek, H Hoffmann and C Thunig,J. Colloid Interface Sci. 206, 439 (1998)
F Reiss-Husson and V Luzzati,J. Phys. Chem. 68, 3504 (1964)
I Koltover, T Salditt and C R Safinya,Biophys. J. 77, 915 (1999)
Y Hendrikx and J Charvolin,J. Physique 42, 1427 (1981)
P Kekicheff and B Cabane,J. Physique 48, 1571 (1987)
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Krishnaswamy, R., Raghunathan, V.A. & Sood, A.K. Structures of some surfactant—polyelectrolyte complexes. Pramana - J Phys 61, 447–454 (2003). https://doi.org/10.1007/BF02708324
Issue Date:
DOI: https://doi.org/10.1007/BF02708324