Abstract

2-Formyl pyrrole polymerizes in alcoholic solution by hydrochloric acid as a catalyst. The polymeric product was characterized by FTIR, XPS, and EDX techniques, which confirmed that polymerization occurred through aldehyde group. Kinetics of the reaction was studied by UV–Vis absorption spectroscopy at 475 nm. It was found that reaction occurred according to an accelerated chain polymerization mechanism via two stages. Firstly, active centers are formed. Then the chain growth occurs. The reaction order with respect to monomer and catalyst concentration as well as reaction rate coefficients were determined on both stages. Suggested reaction mechanism is consistent with experimental data.

中文翻译：

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聚（2-甲酰基吡咯）的合成、表征和动力学研究

摘要

2-甲酰基吡咯在盐酸作为催化剂的醇溶液中聚合。聚合物产物通过 FTIR、XPS 和 EDX 技术进行表征，证实聚合是通过醛基发生的。反应动力学通过紫外-可见吸收光谱在 475 nm 处进行研究。发现反应通过两个阶段根据加速链聚合机制发生。首先，形成活跃的中心。然后发生链增长。在两个阶段确定关于单体和催化剂浓度以及反应速率系数的反应顺序。建议的反应机理与实验数据一致。