Summary
The molecular diffusion coefficients of xylene isomers have been determined at different temperatures in the three phases (smectic, nematic and isotropic) of 4,4′-bis(heptyloxy)azoxybenzene (BHOAB) by gas chromatography. The results obtained are discussed in terms of molar volume, polarity and length-to-breadth ratio of several isomers. The activation energy of diffusion processes of solutes in the three phases of the liquid crystal has been calculated.
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Medina, I. Determination of molecular diffusion coefficients in liquid crystal 4,4′-bis(heptyloxy)azoxybenzene by gas chromatography. Chromatographia 35, 539–542 (1993). https://doi.org/10.1007/BF02267913
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DOI: https://doi.org/10.1007/BF02267913