Thermal Behavior of Some Bent-Core Resorcinol Derivatives with Azo-Type Spacers and Variable Flexible Chain

被引：5

作者：

Ciobanu, Catalina Ionica ^{[1
,2
]}

Drochioiu, Gabi ^{[2
]}

Carlescu, Irina ^{[3
]}

Lisa, Gabi ^{[3
]}

Antoci, Vasilichia ^{[1
]}

Vasilache, Violeta ^{[4
]}

Scutaru, Dan ^{[3
]}

机构：

[1] Alexandru Ioan Cuza Univ, Fac Chem, Res Dept, Iasi, Romania

[2] Alexandru Ioan Cuza Univ, Fac Chem, Dept Biochem, POB 7000-506, Iasi, Romania

[3] Gh Asachi Tech Univ Iasi, Fac Chem Engn & Environm Protect, Dept Nat & Synthet Polymers, Iasi, Romania

[4] Stefan Cel Mare Univ Suceava, Dept Organ Chem, Suceava, Romania

来源：

LETTERS IN ORGANIC CHEMISTRY | 2016年 / 13卷 / 02期

关键词：

1,3-disubstituted resorcinol; azo spacers; bent-shaped compounds; thermogravimetric analysis; BANANA-SHAPED MOLECULES; LIQUID-CRYSTALS; CHIRALITY; POLYMER;

D O I：

10.2174/1570178612666150916010459

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Background: This paper investigates the thermal behavior of some synthesized bent-shaped compounds with liquid crystalline properties. The newly synthesized resorcinol-based compounds contain five benzene-rings connected by azo bond type and ester linkage. Methods: The thermal stability studies were performed under dynamic conditions of temperature, by applying thermogravimetry, derivative thermogravimetry and differential thermal analysis, the same operational parameters being used in order to obtain comparable results. Results: Compounds with shorter chain length presented liquid crystalline properties, as they were evidenced by polarizing optical microscopy (POM) and differential scanning calorimetry (DSC). Conclusion: The length of terminal flexible chains was related to various temperatures of thermal degradation and was shown to influence favorably the thermal stability of bent core resorcinol derivatives.

引用

页码：156 / 161

页数：6

共 29 条

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