Molecular crystals and liquid crystals · 1983 · 10 citations · 4 references
Natural SciencesChemistryPhysicsCondensed Matter PhysicsPhysical ChemistryThermal AnalysisHigh-pressure ThermodynamicsLiquid CrystalsPhase AnalysisPhase DiagramsPhase EquilibriaPhase TransitionsHigh-pressure Phase BehaviorHigh-pressure Phase DiagramsHigh-pressure Phase StabilityPhase Diagram AnalysisPressure-temperature Phase BehaviorPressure-temperature Phase DiagramsTemperature Effects On Phase BehaviorTemperature-dependent Phase Transitions
Abstract The phase behaviour of some Terephthal-bis-(4-n-alkylanilines) (TBAAs) has been studied up to 5 kbar in the temperature range from 300 to 650 K using a differential thermal analysis equipment (DTA) and a diamond anvil cell (DAC) mounted on a polarizing microscope. All substances exhibit a complex T-p behaviour, which is discussed with respect to the stability of the different liquid crystalline phases.
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