Bulletin of the Korean Chemical Society

Korean Chemical Society (대한화학회)
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Synthesis and Properties of Thermotropic Compounds with Two Terminal Mesogenic Units and a Central Spacer (Ⅵ). Homologous Series of $\alpha,\;\omega$-Bis[4-(p-substituted benzoyloxy)benzoyloxy]alkanes$^*$

  • Jin, Jung-Il (Department of Chemistry, College of Sciences, Korea University) ;
  • Seong, Churl-Min (Department of Chemistry, College of Sciences, Korea University) ;
  • Jo Byung-Wook (Department of Chemical Engineering. Chosun University.)
  • Published : 1985.02.20
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Abstract

The thermal and optical properties of two new series of thermotropic, liquid crystalline compounds were studied by differential scanning calorimetry and on the hot-stage of a polarizing microscope. The first series contained two identical mesogenic units, 4-(p-phenylbenzoyloxy) benzoate moieties, at both ends of the polymethylene spacer of varying lengths and the second series, mesogenic units with different substituents and the hexamethylene group as the central spacer. A thermodynamic analysis of the phase transitions of the compounds was made and the results were discussed in relation to their chemical structures.

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References

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  14. Liquid Crystals and Plastic Crystals v.1 G. W. Gray(ed.);P. A. Winsor(ed.)
  15. The Molecular Physics of Liquid Crystals G. R. Luckhurst(ed.);G. W. Gray(ed.)
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