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Title: Dielectric measurements of nematic and smectic A phases in a binary system
Authors: Bamezai, Rajinder K
Sharma, Meena
Gupta, Monika
Gupta, Ankush
Soni, Arti
Keywords: Liquid crystals;Phase diagrams;Dielectric properties;Nematic phase;Smectic phase
Issue Date: May-2011
Publisher: NISCAIR-CSIR, India
Abstract: The phase diagram of a binary mixture of 4-n-octyloxy- phenyl–4′-n-heptylcyclohexane carboxylate (molecule having weak polar terminal group) and 4-nitrophenyl-4′-n-pentylbenzoate (molecule having strong polar terminal group) has been studied using polarizing microscope and differential scanning calorimeter. The phase diagram shows an enhancement in smectic A phase over a wide composition range and intermediate nematic phase in a narrow composition range. The dielectric properties of these phases are investigated in the frequency range of 100 Hz to 1 MHz.
Page(s): 680-684
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.50A(05) [May 2011]

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