Synthesis of novel liquid crystalline organometallic polymers

被引：26
|
作者：
Bunz, UHF
机构：
[1] MPI für Polymerforschung, D - 55021 Mainz
来源：
PURE AND APPLIED CHEMISTRY | 1996年 / 68卷 / 02期
关键词：
D O I：
10.1351/pac199668020309
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The synthesis and some properties of organometallic homo- and copolymers carrying diethynylated pi-complexes are discussed. As monomers the diethynylated derivatives of cymantrene and cyclopentadienyl(1,3-bistrimethylsilylcyclobutadiene)cobalt were utilized. Novel thermotropic nematic and lyotropic smectic liquid crystalline polymers were synthesized as copolymers of 1 and 2,5-dihexyl-1,4-diiodobenzene or 3-hexyl-2,5-diiodothiophene in a Cassar-Heck-Hagihara coupling reaction. The liquid crystalline behavior was secured by polarizing microscopy and powder X-ray diffractometry.
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页码：309 / 312
页数：4
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