LIQUID-CRYSTALLINE PHASES OF PERFLUORINATED COMPOUNDS WITH SEGREGATEDSUBLAYERS

Authors
DIELE S LOSE D KRUTH H PELZL G GUITTARD F CAMBON A
Citation
S. Diele et al., LIQUID-CRYSTALLINE PHASES OF PERFLUORINATED COMPOUNDS WITH SEGREGATEDSUBLAYERS, Liquid crystals, 21(5), 1996, pp. 603-608
Citations number
30
Categorie Soggetti
Crystallography
Journal title
Liquid crystals → ACNP
ISSN journal
02678292
Volume
21
Issue
5
Year of publication
1996
Pages
603 - 608
Database
ISI
SICI code
0267-8292(1996)21:5<603:LPOPCW>2.0.ZU;2-5
Abstract
The liquid crystalline polymorphism (S-A, S-B, CrE) and the structures of the phases of N-n-perfluoralkylethyl-(4-phenylbenzylidene)imines a re described. It is shown that the smectic layer consists of two subla yers in to which the incompatible moieties of the compounds segregate. It is proved that the perfluoralkyl chains remain disordered until cr ystallization occurs, whereas with decreasing temperature, the aromati c parts are ordered in types of S-B and CrE structure.