6533b7defe1ef96bd1275bd5
RESEARCH PRODUCT
Fluoroalkylated discotic liquid crystals
Helmut RingsdorfNicholas C. MaliszewskyjC. ErdelenR. FestagU. DahnJoachim H. WendorffPaul A. Heineysubject
Materials scienceDiscotic liquid crystalTriphenyleneMesophaseGeneral ChemistryAtmospheric temperature rangeCondensed Matter Physicschemistry.chemical_compoundCrystallographychemistryLiquid crystalSide chainOrganic chemistryMoleculeGeneral Materials Sciencedescription
Abstract The concept of mesophase stabilization by partial fluorination of side chains has been extended to discotic systems. The mesophase structure is essentially unchanged, whereas the temperature range of the mesophase is strongly affected by the fluorinated side chains. Triphenylene substituted with only one partially fluorinated side chain exhibits a decrease of the clearing temperature, whereas for symmetrically substituted systems a broad range mesophase has been observed. This behaviour can be attributed to a segregation of the incompatible parts of the molecule giving rise to a stabilized columnar structure for the symmetrical substitution pattern.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1995-12-01 | Liquid Crystals |