由红外光谱可知，聚- 2 -氨基吡啶具有头-尾相接的结构。
The IR spectra indicate that poly 2 aminopyridine has head to tail structure.
用氟硅酸铵对HMCM-22分子筛进行了改性处理，并采用氨程序升温脱附和吡啶吸附红外光谱法测定了其酸性。
HMCM-22 zeolite was modified with ammonium hexafluorosilicate and characterized by temperature-programmed desorption of ammonia and pyridine adsorption infrared spectroscopy.
合成了聚氯乙烯一吡啶树脂，并通过元素分析和红外光谱进行了表征。
PVC-Pyridine resin was prepared, and its structure was characterized by IR spectra and elementary analysis.
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