Structural characterization of linear dimeric and cyclic tetrameric liquid crystalline siloxane derivatives
作者:
Mohammed Ibn-elhaj,
Antoine Skoulios,
Daniel Guillon,
Joanna Newton,
Philip Hodge,
HarryJ. Coles,
期刊:
Liquid Crystals
(Taylor Available online 1995)
卷期:
Volume 19,
issue 3
页码: 373-378
ISSN:0267-8292
年代: 1995
DOI:10.1080/02678299508031994
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
The phase behaviour and the structural characterization of a new series of linear dimeric and cyclic tetrameric molecules which contain three distinct parts, a cyanobiphenyl aromatic core (A), a paraffin chain (P) and a central siloxane group (B) with the A-P-B-P-A sequence, are described. Incompatible with one another, these parts tend to locate themselves in three separate sub-layers superposed in a partially bilayered smectic A structure. Each sub-layer adapts its internal structure in order to be appropriate for superposition, as in the case of organosiloxane molecules with the A-P-B sequence reported previously.
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