Abstract

An ecological strategy is discussed in this study, concerning the synthesis of a novel family of soluble conjugated polymers obtained by the copolymerization of thiophene with para-cholorobenzaldehyde. The reaction proceeded under mild conditions using a catalyst of clay origin (Maghnite-H⁺). This catalyst was prepared by creating active sites in the form of hydronium ions between the layers of the smectite-type clay, this was achieved by a light treatment with an acid. In order to identify the nature of the material obtained, it has been characterized by ¹H NMR, UV–Vis, FTIR spectroscopy and thermal gravimetric analysis. The conjugated polymer obtained is a candidate for small-bandgap conducting copolymers based on poly(heteroarylene methine)s, and could serve as a useful model system which is the subject of sufficient research on the impacts of π-conjugation length on the electronic properties of the conjugated polymers. The measurement of the electrical conductivity of the synthesized polymer was made by spin coating technique, it is in the range of 1.864 × 10^–7 Ω/cm.

中文翻译：

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菱镁矿-H +催化的噻吩与对-氯苯甲醛的绿色共聚

摘要

在这项研究中讨论了一种生态策略，涉及通过噻吩与对-胆苯甲醛共聚获得的新型可溶性共轭聚合物。该反应在温和条件下使用粘土来源的催化剂（Maghnite-H ⁺）进行。通过在蒙脱石型粘土的层之间产生水合氢离子形式的活性位点来制备该催化剂，这是通过用酸进行光处理来实现的。为了确定所获得材料的性质，其特征是¹H NMR，UV-Vis，FTIR光谱和热重分析。所获得的共轭聚合物是基于聚（亚杂芳基次甲基）的小带隙导电共聚物的候选物，并且可以作为有用的模型系统，是对π共轭长度对电子电学性质影响的充分研究的主题。共轭聚合物。合成聚合物的电导率通​​过旋涂技术进行测量，范围为1.864×10 ^–7Ω / cm。