Liquid Crystal Alignments and Surface Energy
- 1 June 1980
- journal article
- research article
- Published by Taylor & Francis in Molecular Crystals and Liquid Crystals
- Vol. 60 (1-2), 37-52
- https://doi.org/10.1080/00268948008072423
Abstract
The relationship between molecular alignments, surface tension (γL) of nematic liquid crystals and critical surface tension (γC) of surfaces are examined for various surface structures using thirteen types of alkoxysilanes RSi(OCnH2n+1)3. As the results, Creagh's conception that the perpendicular alignments are induced when γ C γ< L , and parallel alignments are induced when γ C > γ L was found to be not necessarily correct. Moreover, Porte's theory which gave the theoretical basis to Creagh's conception was examined, and it is clarified that the prerequisite for the theory is not generally realized.Keywords
This publication has 11 references indexed in Scilit:
- Liquid-crystal orientation induced by polymeric surfacesJournal of Applied Physics, 1976
- Tilted alignment of MBBA induced by short-chain surfactantsJournal de Physique, 1976
- Alignment and wetting properties of nematic liquidsApplied Physics Letters, 1974
- Mechanism of Surface Alignment in Nematic Liquid CrystalsMolecular Crystals and Liquid Crystals, 1973
- Dielectric Properties of Some Nematic Liquid Crystals with Strong Positive Dielectric AnisotropyThe Journal of Chemical Physics, 1972
- Molecular order at the free surface of a nematic liquid crystal from light reflectivity measurementsPhysics Letters A, 1971
- Low-temperature mesomorphism in terminally substituted benzylideneanilinesThe Journal of Physical Chemistry, 1970
- ATTRACTIVE FORCES AT INTERFACESIndustrial & Engineering Chemistry, 1964
- The spreading of liquids on low energy surfaces. I. polytetrafluoroethyleneJournal of Colloid Science, 1950
- The Effect of Dissolved Salts on Insoluble MonolayersJournal of the American Chemical Society, 1937