CAJ | 학술논문

在293～393 K 温度范围内，分别采用一维红外光谱、二阶导数红外光谱和二维红外光谱测定硬脂酸亚甲基变角振动模式（?CH2）。实验发现：在1440～1480 cm-1范围内，硬脂酸?CH2存在“第一特征频率谱带”和未见文献报道的“第二特征频率谱带”，并进一步研究了温度对于硬脂酸δCH2红外吸收强度及变化顺序的影响。本项研究显示出二维红外光谱在材料热变性分析中的重大作用。
재293～393 K 온도범위내，분별채용일유홍외광보、이계도수홍외광보화이유홍외광보측정경지산아갑기변각진동모식（?CH2）。실험발현：재1440～1480 cm-1범위내，경지산?CH2존재“제일특정빈솔보대”화미견문헌보도적“제이특정빈솔보대”，병진일보연구료온도대우경지산δCH2홍외흡수강도급변화순서적영향。본항연구현시출이유홍외광보재재료열변성분석중적중대작용。
Stearic acid methylene scissoring bond vibration(δCH2) of one-dimensional infrared spectroscopy, second derivative infrared spectroscopy and two-dimensional infrared spectroscopy were measured in the temperature range from 293K to 393K. The first key band frequencies and the unreported second key band frequencies were discovered in the band region from 1440 to 1480cm-1. The temperature effect on band intensity and ordered change were discussed as well. The study demonstrated the key role of two-dimensional infrared spectroscopy in the analysis of material thermal denaturation.