Search results for "ionic liquid crystals"

showing 2 items of 12 documents

Viologen-based ionic liquid crystals: induction of a smectic A phase by dimerisation.

2014

The stability of thermotropic ionic liquid crystals is essentially due to micro-phase segregation between the ionic heads and the long alkyl chains. Here we show, using newly synthesized viologen dimers, that the structure of the central core is another key parameter to play with in order to tune the mesomorphic behaviour. © 2014 the Owner Societies.

chemistry.chemical_classificationChemistryLiquid crystalsGeneral Physics and AstronomyIonic bondingViologenThermotropic crystalionic liquidsIonic liquid crystals viologen dimer smectic A phaseCrystallographychemistry.chemical_compoundphase transitionPhase (matter)Ionic liquidmedicineOrganic chemistryLiquid crystals; phase transition; ionic liquidsPhysical and Theoretical ChemistryAlkylSettore CHIM/02 - Chimica Fisicamedicine.drugPhysical chemistry chemical physics : PCCP
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Ionic self assembly in the design of fluorinated ionic liquid crystals (ILCs)

2011

Ionic liquid crystals are a class of compounds containing anions and cations, that combine the properties of liquid crystals and ionic liquids[1]. In the conventional design of ionic liquid crystalline compounds, an ionic core is connected with mesogenic groups via chemical covalent bonding . Alternatively, in ionic compounds, strong electrostatic interactions between cation and anion can be used to build up liquid crystalline order at supramolecular level. This general approach, called ionic self-assembly (ISA), allows one to create ionic phases and mesophases with highly organized supramolecular order [2]. In this context, a new series of fluorinated ionic liquids (ILs) and ionic liquid c…

self-assemblySettore CHIM/06 - Chimica Organicaionic liquid crystalsIonic Liquid Crystals oxadiazolyl-pyridine fluorinated
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