Undulation textures at the phase transitions of some alkyloxybenzoic acids

A. Sparavigna; A. Mello; G. Massa

doi:10.1080/01411590902898874

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arXiv · 0812.2178

Undulation textures at the phase transitions of some alkyloxybenzoic acids

A. Sparavigna·A. Mello·G. Massa

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Abstract

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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A. Sparavigna, A. Mello, G. Massa. 2009-03-03. Undulation textures at the phase transitions of some alkyloxybenzoic acids. https://doi.org/10.1080/01411590902898874

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