Anomalous Densities in Liquid Crystalline bis-(4-n-alkoxybenzal)-1, 4-phenylenediamines
- 1 February 1972
- journal article
- research article
- Published by Taylor & Francis in Molecular Crystals and Liquid Crystals
- Vol. 16 (1), 171-174
- https://doi.org/10.1080/15421407208083589
Abstract
Recently Arora, Taylor, Fergason and Saupe(1,2) investigated the homologous series of the bis-(4-n-alkoxybenzal)-1, 4-phenylenediamines. In contradiction to Gray,(3) who found in this series only one nematic and one smectic modification, they observed besides one nematic modification a number of smectic phases, up to five for several substances. The greatest number of phase transitions were found in the case of the heptyloxy- up to the decyloxy-derivatives.Keywords
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