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Title: Synthesis and miscibility studies of some phenyl cinnamoyloxybenzoate derivatives
Authors: Urs, Subramanya Raj M.
Sadashiva, B.K.
Suresh, K.A.
Krishna Prasad, S.
Issue Date: Dec-1983
Publisher: Gordon and Breach Science Publishers.
Citation: Molecular Crystals and Liquid Crystals, 1983, Vol.103, p235-241
Abstract: Some members of the homologous series, 4-cyanophenyl-3'-methyl-4'(4"-n-alkyloxycinnamoyloxy) benzoate and 4-cyanophenyl-3'-methyl-4'(4"-n-alkyloxy-agr-methyl cinnamoyloxy)benzoate have been prepared. The transitions were studied by hot stage microscopy and differential scanning calorimetry. The undecyloxy- and dodecyloxy-derivatives exhibit a reentrant nematic phase at atmospheric pressure. The effect of a lateral substituent on the reentrant phenomenon in these compounds is discussed. A detailed study of the phase diagrams of binary mixtures of each of these compounds exhibiting a reentrant phase with 4-cyanophenyl-3'-methyl-4'(4"-n-decylbenzoyloxy)benzoate, a compound exhibiting no reentrant phase has been carried out. Interestingly, in three cases, the binary mixtures exhibit stable enantiotropic reentrant behaviour over a range of composition though the pure compounds themselves are monotropic reentrants.
Description: Restricted Access. Proceedings of the 9th international liquid crystal conference, Bangalore, 1982.
ISSN: 1058-725X
Alternative Location:
Copyright: 1983 OPA (Overseas Publishers Association) N.V.
Appears in Collections:Research Papers (SCM)

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