Thermogravimetric analysis of aromatic polyamides with benzimidazolyl side group

被引：4

作者：

Abematsu, H ^{[1
]}

Tsuchiya, M ^{[1
]}

Iseri, Y ^{[1
]}

Kojima, T ^{[1
]}

机构：

[1] Natl Def Acad, Dept Chem, Yokosuka, Kanagawa 2398686, Japan

来源：

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 1999年 / 56卷 / 03期

关键词：

activation energy; aromatic polyamide; benzimidazolyl-substitution; TG; thermal stability;

D O I：

10.1023/A:1010144709660

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The TG studies are presented for isomers of benzimidazolyl-substituted polyamides (BIPA). The TG data are compared with those polyamides (PA) of identical backbones without substitution, in view of the mechanism of thermal degradation. The TG mass loss curves divided to three temperature ranges reflect: the decomposition reactions in the respective temperature ranges: (1) cleavage of single bonds of nitrogen to aromatic ring, (2) random scission of single bonds, (3) condensation of the remained rings. Liberation of benzimidazole rings occurs in the temperature range (2). The final product, char, contains benzimidazole rings. Terephthaloyl-rich BIPA's retard liberation of benzimidazole from the decomposed polymer.

引用

页码：1093 / 1096

页数：4

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