A New Kind of A-A Transition: Studies on Binary Mixtures of Terminally Substituted Cyano and Nitro Compounds
- 1 June 1984
- journal article
- Published by Taylor & Francis in Molecular Crystals and Liquid Crystals
- Vol. 102 (4) , 105-111
- https://doi.org/10.1080/01406568408070519
Abstract
Restricted Access.High pressure, Xray and miscibility studies on binary mixtures of terminally substituted cyano and nitro compounds have led to the observation of two kinds of A-A transitions, viz., Ad-Ad and Ad-A1, the former being observed for the first time. The signatures of these transitions, which are not observable either optically or by differential scanning calorimetry, are seen dramatically in the smectic A -nematic phase boundary in the P-T plane. Xray results show that the Ad-Ad transition is from a partially bilayer smectic A with a temperature-independent layer spacing to one with a temperature-dependent layer spacingKeywords
This publication has 6 references indexed in Scilit:
- Temperature Variation of the Layer Spacing in the Smectic A, Reentrant Nematic and Reentrant Smectic A Phases of 9 OBCABMolecular Crystals and Liquid Crystals, 1983
- High Pressure Studies on Partially Bilayer and Monolayer SmecticsMolecular Crystals and Liquid Crystals, 1983
- Pressure Studies of Liquid Crystalline TransitionsMolecular Crystals and Liquid Crystals, 1983
- Polymorphisme des substances mésogènes a molécules polaires. I. Physico-chimie et structureJournal de Chimie Physique et de Physico-Chimie Biologique, 1983
- High pressure studies on reentrant nematogensJournal de Physique, 1983
- Number ofphasesPhysical Review A, 1981