This work presents a comprehensive study on the physico‐chemical and electrochemical properties of polyindenes (PIns) synthesized by Maghnite‐H⁺‐catalysed polymerization of indene (benzocyclopentadiene) in CH₂Cl₂ at different temperatures, and their oxidative derivatives by subsequent treatment with FeCl₃. The polymers are characterized by TG, FT‐IR, XPS and UV‐vis spectroscopies, as well as electrical conductivity and voltammetric measurements, analysing the influence of synthesis temperature and post‐oxidation. Results show that the PIns synthesized at different temperatures present quite similar thermogravimetric behavior and UV spectra. Nevertheless, FTIR and XPS reveal significant differences in chemical composition and polymer structure depending on this temperature. At higher temperatures, indenyl coupling proceeds via 1,2 carbon atoms to obtain more compact and less defective PIns with higher yields. At lower temperatures, polymerization through 1,3 carbon atoms may also occur, leading to polymers with a larger number of defects and oxygen functionalities and lower yields. FeCl₃ treatment causes the introduction of some oxygen functionalities in the compact PIn60 and PIn80 polymers, without significantly affecting their molecular structure and electrical conductivity. Finally, cyclic voltammetry demonstrates that, despite not electro‐active, these partially oxidized PIns show enough electrical conductivity for different applications.

中文翻译：

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Maghnite-H +催化合成和表征聚茚和氧化衍生物

这项工作对由Maghnite-H ⁺在不同温度下在CH ₂ Cl ₂中催化茚（苯并环戊二烯）聚合的茚（苯并环戊二烯）聚合及其氧化衍生物进行了深入的研究，对聚茚（PIns）的理化和电化学性质进行了全面的研究。的FeCl ₃。该聚合物的特征在于TG，FT-IR，XPS和UV-vis光谱学，以及电导率和伏安测量，分析了合成温度和后氧化的影响。结果表明，在不同温度下合成的PIn具有非常相似的热重行为和UV光谱。然而，FTIR和XPS揭示了取决于该温度的化学组成和聚合物结构的显着差异。在更高的温度下，茚基偶联通过1,2个碳原子进行，从而以更高的收率获得更致密，缺陷更少的PIn。在较低温度下，通过1,3聚合碳原子也可能会出现，从而导致聚合物具有更多的缺陷和氧官能度，并且产率较低。FeCl ₃处理会在紧凑的PIn60和PIn80聚合物中引入一些氧官能度，而不会显着影响其分子结构和电导率。最后，循环伏安法表明，尽管没有电活性，这些部分氧化的PIn仍显示出足以用于不同应用的电导率。