Abstract
The properties of films formed on the water surface by rigid molecules of organosilicon compounds, oligomeric silsesquioxanes containing phenyl and ethyl side groups, are studied. These compounds are shown to form insoluble stable layers. The properties of the monomolecular films of rigid macromolecules are similar to those of the monolayers of flexible-chain molecules, and the former can be considered as two-dimensional solutions. In contrast to flexible chains, the collapse of the monolayers of rigid molecules, which is formally considered as the first-order phase transition, is accompanied by the formation of an anisotropic lamellar structure, which can be referred to as the mesomorphic state of the substance.
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Ogarev, V.A. Silsesquioxane Films on Water Surface. Colloid Journal 63, 445–452 (2001). https://doi.org/10.1023/A:1016753805266
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DOI: https://doi.org/10.1023/A:1016753805266