Abstract Microcomposites of zirconium 4-sulfophenylphosphonate and polyaniline (PANI) and zirconium 4-carboxyphenylphosphonate and PANI were prepared and their thermal decomposition in air and in nitrogen was studied by thermogravimetry. The products of the decomposition of the parent zirconium phosphonates as well as the composites formed with PANI were characterized by energy-dispersive X-ray analysis, elemental analysis, powder X-ray diffraction, IR spectroscopy, and Raman spectroscopy. Heating of the parent hosts and the composites in air to 850 °C leads to their total or almost total conversion to amorphous zirconium diphosphate. In nitrogen, on the other hand, a significant amount of carbon is retained after heating of both the hosts and the composites to 850 °C. The Raman spectra reveal that PANI, which is present as a thin film on the host particles in the starting composites, is converted to a carbon-like material when it is heated in a nitrogen atmosphere. The originally crystalline phosphonates become amorphous after being heated in nitrogen, which means that the heating leads to the destruction of the layered structure of these compounds. IR spectra indicate that the phosphonate particles either in the parent host or in the nanocomposites heated in nitrogen are protected against condensation to zirconium diphosphate.

中文翻译：

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聚苯胺-膦酸锆复合材料：热稳定性和光谱研究

摘要 制备了4-磺基苯基膦酸锆与聚苯胺（PANI）和4-羧基苯基膦酸锆与聚苯胺的微复合材料，并利用热重法研究了它们在空气和氮气中的热分解情况。通过能量色散 X 射线分析、元素分析、粉末 X 射线衍射、红外光谱和拉曼光谱对母体膦酸锆的分解产物以及与 PANI 形成的复合物进行了表征。将母体和复合材料在空气中加热到 850 °C 会导致它们全部或几乎全部转化为无定形二磷酸锆。另一方面，在氮气中，主体和复合材料均加热至 850 °C 后会保留大量碳。拉曼光谱显示 PANI，它在起始复合材料的主体颗粒上以薄膜形式存在，在氮气氛中加热时转化为类碳材料。原本结晶的膦酸酯在氮气中加热后变成无定形，这意味着加热会破坏这些化合物的层状结构。IR 光谱表明，无论是母体还是在氮气中加热的纳米复合材料中的膦酸盐颗粒都受到保护，不会缩合成二磷酸锆。