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Abstract
Pure surface-active compounds have been prepared which exist in the mesomorphic state in a high vacuum. An examination of surface replicas of the anhydrous neat phase given by sodium 2-ethylhexyl sulphate and of the anhydrous middle phases given by several homologues of sodium di-2-ethylhexyl sulphosuccinate has shown that both neat and middle mesomorphic phases possess stepped growth patterns. In both cases the step-height measurements agree with the interlayer spacings determined by low-angle X -ray diffraction and are consistent with layers having a thickness approximately equal to the length of two surface-active molecules. Topographical differences between neat and middle phase have been related to their different structures.
Published Version
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Schedule a callMore From: Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences
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