Sedenková I, Trchová M, Stejskal J, Bok J
Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Prague 6, Czech Republic.
Appl Spectrosc. 2007 Nov;61(11):1153-62. doi: 10.1366/000370207782597058.
The progress of the oxidative polymerization of aniline with ammonium peroxydisulfate in an aqueous medium has been monitored in situ by attenuated total reflection Fourier transform infrared spectroscopy. The growth of polyaniline film at the crystal surface, as well as the changes proceeding in the surrounding aqueous medium, are reflected in the spectra. The evolution of the spectra during aniline polymerization in the presence of acetic or sulfuric acid was studied with the aim of understanding the influence of acidity on the observed morphology of the final polyaniline films, granular or nanotubes. The changes occurring during polymerization are discussed with the help of differential spectra. Several processes connected with the various stages of aniline oxidation, the evolution of film morphology, or protonation, were distinguished by using factor analysis applied to a large number of spectra obtained in the course of aniline polymerizations on the crystal.
通过衰减全反射傅里叶变换红外光谱对苯胺与过硫酸铵在水介质中的氧化聚合过程进行了原位监测。晶体表面聚苯胺膜的生长以及周围水介质中发生的变化都反映在光谱中。研究了在乙酸或硫酸存在下苯胺聚合过程中光谱的演变，目的是了解酸度对最终聚苯胺膜（颗粒状或纳米管）观察到的形态的影响。借助微分光谱讨论了聚合过程中发生的变化。通过对在晶体上苯胺聚合过程中获得的大量光谱应用因子分析，区分了与苯胺氧化的各个阶段、膜形态演变或质子化相关的几个过程。
