ISSN:
1435-1528
Schlagwort(e):
Shear viscosity
;
liquid crystal
;
nematic phase
;
smectic phase
;
biphenyl
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Chemie und Pharmazie
,
Physik
Notizen:
Abstract Rheological measurements have been carried out using a rotational viscometer with a system of coaxial cylinders on four liquid crystalline substances from the group of cyanobiphenyls. On the basis of results of these investigations it was found that in the investigated range of shear rates the nematic phases exhibited Newtonian flow behaviour, while the smectic phases exhibited non-Newtonian behaviour. For shear rates up to ca. 1000 s−1 the dependence of the shear stress on shear rate is well described by a power-law model.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF01332076
