Rapid Determination of Terephthalic Acid in the Hydrothermal Decomposition Product of Poly(ethylene terephthalate) by Thermochemolysis-Gas Chromatography in the Presence of Tetramethylammonium Acetate
Rapid Determination of Terephthalic Acid in the Hydrothermal Decomposition Product of Poly(ethylene terephthalate) by Thermochemolysis-Gas Chromatography in the Presence of Tetramethylammonium Acetate
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DOI：
10.2116/analsci.27.1053
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发表时间：
2011-10
影响因子：
1.6
通讯作者：
Y. Ishida;K. Ohsugi;Kohei Taniguchi;H. Ohtani
中科院分区：
文献类型：
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作者：
Y. Ishida;K. Ohsugi;Kohei Taniguchi;H. Ohtani
采用四甲基乙酸铵存在下的热化学气相色谱法直接测定聚对苯二甲酸乙二醇酯（PET）水热回收过程中获得的固体分解产物中所含的对苯二甲酸（TPA）。在PET水热分解产物的色谱图中，可以清楚地观察到TPA组分的尖峰，因为其通过热化学分解反应形成了相应的二甲酯。根据峰强度，可以精确、快速地测定分解产物中 TPA 的含量，无需使用任何繁琐的样品预处理。
Thermochemolysis-gas chromatography in the presence of tetramethylammonium acetate was applied to the direct determination of terephthalic acid (TPA) contained in solid decomposition products obtained from the hydrothermal recycling process of poly(ethylene terephthalate) (PET). On the chromatograms of the hydrothermal decomposition products of PET, a sharp peak of the TPA component was clearly observed as its corresponding dimethyl ester formed through the thermochemolysis reaction. Based on the peak intensities, the contents of TPA in the decomposition products were determined precisely and rapidly without using any cumbersome sample pretreatments.