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RESEARCH PRODUCT
In-Plane Anisotropy and Phase Change in Langmuir-Blodgett Films of a Triphenylene Derivative
Christophe MingotaudMichel VandevyverJavier PérezHelmut RingsdorfPierre-antoine AlbouyOlaf KarthausAndré Barraudsubject
Phase transitionCondensed matter physicsChemistryTriphenyleneCondensed Matter PhysicsPhotochemistryLangmuir–Blodgett filmCondensed Matter::Soft Condensed Matterchemistry.chemical_compoundIn planeLiquid crystalCondensed Matter::SuperconductivityPhase (matter)AnisotropyDerivative (chemistry)description
Abstract The “in-plane anisotropy” of a triphenylene derivative in Langmuir-Blodgett (L.B.) films has been investigated. Upon heating, L.B. films exhibit a reversible phase transition appearing as an abrupt increase from a low to a high “in-plane anisotropy” corresponding to the formation of the same hexagonal liquid crystal phase observed in the bulk material at almost the same temperature, with the columnar axis aligned along the dipping direction.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1993-10-01 | Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals |