ROTATIONAL VISCOSITY MEASUREMENTS OF THE NEMATIC PHASE IN A CSPFO H2OLYOTROPIC LIQUID-CRYSTAL/

Authors
KIM DR
Citation
Dr. Kim, ROTATIONAL VISCOSITY MEASUREMENTS OF THE NEMATIC PHASE IN A CSPFO H2OLYOTROPIC LIQUID-CRYSTAL/, Journal of the Korean Physical Society, 32(1), 1998, pp. 55-59
Citations number
19
Categorie Soggetti
Physics
Journal title
Journal of the Korean Physical Society → ACNP
ISSN journal
03744884
Volume
32
Issue
1
Year of publication
1998
Pages
55 - 59
Database
ISI
SICI code
0374-4884(1998)32:1<55:RVMOTN>2.0.ZU;2-3
Abstract
The rotational viscosity, gamma(1), in the nematic phase of a 49.13/50 .87 wt.% CsPFO\H2O-system was investigated by the rotational magnetic- field method. This sample showed Newtonian behavior for the selected a ngular speeds. The pretransitional effect on gamma(1) near the disk-li ke nematic N-L to lamellar phase transition was better understood with the mean-field model of McMillan, which predicted a critical exponent nu = 0.5 for the divergence of gamma(1), than with de Gennes' model.