Undulation textures at the phase transitions of some alkyloxybenzoic acids

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Sparavigna, A.
Mello, A.
Massa, G.
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Abstract
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We observed undulated smectic textures for some compounds of the 4,n-alkyloxybenzoic (nOBAC) acid series, at transitions between the smectic and the isotropic phase and between the smectic and nematic phase. Studied compounds were 12OBAC, 16OBAC and a binary mixture of 12- and 16OBAC. The undulations are dressing a usual Schlieren texture. In the case of the binary mixture, an interesting fingerprint pattern is observed too.
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Condensed Matter - Soft Condensed Matter
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