1992•Molecular crystals and liquid crystals science technology. Section A, Molecular crystals and liquid crystals/Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystalsRequires access
On the Structure of Mixed Langmuir‐Blodgett Films of Two Different Fatty Acid Salts
Silvia Dante, F. Rustichelli, Victor V Erokhin
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Abstract
Langmuir-Blodgett films of mixed behenic and stearic acid salts of cadmium were deposited and investigated by small-angle X-ray scattering. The ratio of compounds was varied from 1:4 to 4:1. It was found that for 1:1 ratio the lattice spacing was equal to 54.0 Å, which corresponds to double chain length of arachidic acid or to a sum of one chain length of stearic and behenic acid salts. In this case a single completely mixed phase was obtained. For the other ratio X-ray patterns contained two systems of reflections, each of them corresponding to one of the pure fatty acid salts (49.0 Å and 58.5 Å respectively), implying the coexistence of two phases.