This paper presents the synthesis and characterization of two series of polymeric compounds comprising eight furan‐based polyamides prepared via melt polycondensation at low temperatures using various combinations of five aromatic raw materials. The chemical and physical structures and thermal stabilities of the obtained polyamides were investigated by various characterization methods. In addition, the polyamides were subjected to solubility testing in five common organic solvents. The results showed that the proposed furan‐based polyamides possessed thermal stabilities similar to those of conventional high‐performance aromatic polyamides, but with greatly improved solubility. Accordingly, the introduction of furan groups increased the solubility of the polyamides with respect to the solubility of their individual precursors, which is highly advantageous for subsequent polyamide processing and expanding their range of potential applications.

中文翻译：

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含有呋喃基和苯基单元的高可溶性全芳族聚酰胺的合成与表征

本文介绍了五种芳香族原料的各种组合，通过低温熔融缩聚制备的八种呋喃基聚酰胺两大类高分子化合物的合成和表征。通过各种表征方法研究了所得聚酰胺的化学和物理结构以及热稳定性。另外，将聚酰胺在五种常见有机溶剂中进行溶解度测试。结果表明，拟议的呋喃基聚酰胺具有与常规高性能芳族聚酰胺相似的热稳定性，但溶解度大大提高。因此，相对于它们各自的前体的溶解度，呋喃基团的引入增加了聚酰胺的溶解度，