Synthesis and Mesomorphic Properties of Some Bent-core Schiff Bases Containing Azo Linkage

被引：0
|
作者：
Ciobanu, Catalina [1 ]
Carlescu, Irina [1 ]
Lisa, Gabriela [1 ]
Scutaru, Dan [1 ]
机构：
[1] Gheorghe Asachi Tech Univ Iasi, Fac Chem Engn & Environm Protect, Dept Nat & Synthet Polymers, Iasi 700050, Romania
来源：
REVISTA DE CHIMIE | 2013年 / 64卷 / 03期
关键词：
Schiff bases; bent-core compounds; mesogenic groups; azo linkage; BANANA-SHAPED MOLECULES; LIQUID-CRYSTALS; BEHAVIOR; PHASES;
D O I：
暂无
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The synthesis and mesomorphic properties of some new Schiff bases based on a 4-methyl-1,3-diaminobenzene core are reported. The compounds were prepared by condensation reaction of the central core with azobenzene containing mesogenic units [(4-(4-alkoxyphenylazo)-benzaldehydes or 4-(4-alkanoyloxyphenylazo)-benzaldehydes]. The majority of the new bent-shaped Schiff bases presented enantiotropic liquid crystalline properties evidenced by DSC and POM analysis. All the synthesized compounds presented a very good thermal stability as evidenced by thermogravimetric analysis.
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页码：249 / 253
页数：5
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