Title: Formation of organized structures in systems containing alkylpyridinium surfactants and sodium poly(styrenesulfonate)
Authors: Kogej, K ×
Theunissen, Elisabeth
Reynaers, Harry #
Issue Date: Jan-2001
Publisher: Slovensko kemijsko drustvo
Series Title: Acta chimica slovenica vol:48 issue:3 pages:353-362
Abstract: Synchrotron X-ray scattering was used for structural investigations in systems of sodium poly(styrenesulfonate) (NaPSS) and dodecyl- (DPC) and cetylpyridinium chlorides (CPC) at various surfactant to polyelectrolyte (S/P) molar ratios. From the Bragg peaks emerging in the scattering curves two types of organization of surfactant in conjunction with the polyion are proposed. In NaPSS/DPC (all S/P values) and in NaPSS/CPC complexes (S/P less than or equal to0.7) the surfactant is aggregated into spherical polyelectrolyte-induced micelles. These micelles are smaller in size than the ordinary ones. By increasing the S/P ratio, they grow in size, whereas the number of micelle-like aggregates per polyion-chain remains approximately constant. In the NaPSS/CPC precipitate (S/P greater than or equal to1) a hexagonal phase is observed with a unit cell constant equal to 39.5 Angstrom in which micelles change into a cylindrical shape. No similar crystalline-Re structure was observed in complexes with DPC.
ISSN: 1318-0207
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Chemistry - miscellaneous
× corresponding author
# (joint) last author

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