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Determination of molecular diffusion coefficients in liquid crystal 4,4′-bis(heptyloxy)azoxybenzene by gas chromatography (1993)

Medina, I.

Springer

Chromatographia 35 (1993), S. 539-542

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ISSN: 1612-1112

Keywords: Gas chromatography ; Liquid crystals ; Diffusion coefficients ; Xylenes

Source: Springer Online Journal Archives 1860-2000

Topics: Chemistry and Pharmacology

Notes: 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.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF02267913

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