FTIR results indicated that the interaction between 5-SSIPA and amide group on PA6 was proved to be intermolecular hydrogen bond whose intensity and thermal stability was better than that of PA6.

• 变温红外光谱(FTIR)研究结果显示,5-SSIPA能与酰胺基团形成分子间氢键,其强度、热稳定性均好于PA6中原有的分子间氢键。