Molecular Crystals and Liquid Crystals (1969-1991) p. 301 - 306 (1984)
Update date:2022-08-16
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The specific volume, v, of Terephthalyiidene-bis-p-n-butylaniline (TBBA) is measured as a function of temperature from the nematic phase to the smectic C phase. The compound exhibits nematic, smectic A, smectic C, smectic G and smectic H phases. The changes in specific volume across the nematic to smectic A and smectic A to smectic C phase transformations and the calculated thermal expansion coefficients confirm the order of the N-S//A transition as first order and S//A-S//C transition as second order. The volume jump across the N-S//A transition is 0. 16%.
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