Abstract
We have carried out surface manometry and epifluorescence microscopic studies on a polymeric liquid crystal, siloxane polymer of 1-methyl propyl 4 (4′-hexyloxy benzoyloxy) benzoate, n ∼ 40 at the air water interface. At room temperature, on compression, the usual liquid-expanded (LE) phase transforms to a different structure consisting of small bright domains. On further compression, these join to form striations which in turn change to a melted stripe structure. At 35°C, on compression, the LE phase changes to a new structure which appears as large irregularly shaped bright domains. On cooling, these domains change to the melted stripe structure.
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More From: Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals
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