Hydroxy-functionalized liquid crystalline polyazomethines II. Study of new central cores and synthesis of coordination polymers
作者:
J. BARBERA,
P. CERRADA,
L. ORIOL,
M. PINOL,
J. L. SERRANO,
P. J. ALONSO,
期刊:
Liquid Crystals
(Taylor Available online 1997)
卷期:
Volume 22,
issue 4
页码: 483-495
ISSN:0267-8292
年代: 1997
DOI:10.1080/026782997209216
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
A series of hydroxy-functionalized semi-flexible polyazomethines has been synthesized and characterized to investigate the effect of the structure of the diamine monomer on the thermal and mesogenic properties. The diamine monomer introduces structural modifications such as flexibility, lateral substitution, kinks or alteration of chain coaxiality. The mesomorphic phase of the mesogenic polymers was characterized as nematic in nature, but an evolution of the nematic into a smectic mesophase was observed for the polyazomethine derived from 3,3dimethoxybenzidine by annealing in the mesophase temperature range. Polyazomethines derived from aliphatic diamines were complexed with copper(II) to study the dependence of type of complexation on length of the aliphatic diamine.
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