Croatica Chemica Acta, Vol. 62 No. 4, 1989.
Original scientific paper
Structures and Textures of Crystalline Phases and Lyotropic Mesophases of Alkylhenzenesulfonates
Đurđica Težak
; Laboratory of Physical Chemistry, Faculty of Science. P. O. Box 163, University oj Zagreb, Zagreb, Croatia, Yugoslavia
Stanko Popović
; Ruđer Bošković Institute, Yu-41001 Zagreb, Croatia, Yugoslavia
Abstract
The molecular arrays in crystalline n-alkylbenzenesulfonates (CS-C12) were determined by X-ray diffraction and found to be lamellar bilayers with the basic lamellar thickness of 30.1-36.9 A for single-tailed, and 22.25-30.0A for C12 double-tailed surfactants, depending on the length of surfactant molecule. In the colloid dispersions of metal dodecylbenzenesulfonates as well as in the systems of double-tailed C12-isomers, microscopic investigations of liquid crystal textures showed the characteristic lyotropic nematic, lamellar, pseudo-isotropic and transient phases with batonnents.
Keywords
Hrčak ID:
175843
URI
Publication date:
25.2.1990.
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