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Binary mixtures of some terminal non-polar liquid crystals with the two terminal polar liquid crystals 4-cyano-4′-n-octyloxy-biphenyl (8 CBP) and 4-cyano-benzylidene-4′-n-octyloxyaniline (CBOOA) exhibit reentrant nematic phases. The phase diagram of the system 8 CBP/CBOOA indicates that the pure components show this effect too. X-ray data on layer thickness and transition enthalpies are presented.
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Engelen et al. (1979) studied this question.
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