Anomalous Bulk Viscosity of Cholesteric Systems Exhibiting Blue Phases
- 1 July 1982
- journal article
- research article
- Published by Taylor & Francis in Molecular Crystals and Liquid Crystals
- Vol. 82 (4), 123-129
- https://doi.org/10.1080/01406568208070171
Abstract
The bulk viscosity of two cholesteric mixed systems cholesteryl nonanoate/cholesteryl chloride and CB 15/ZLI 1612 has been measured using Ubbelohde capillary viscometers. A viscosity maximum close below the clearing point only has been observed in such mixtures exhibiting blue phases (BP). Cholesteric systems with larger pitches in which no BPs exist show a nematic-like capillary flow behaviour.Keywords
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