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利用变温红外光谱技术对多元醇三羟甲基乙烷 ( PG)、三羟甲基甲胺 ( TAM)及其二元体系的固固相变进行了研究 .研究结果表明 ,在一定温度区间内 ,变温红外光谱图中伸缩振动吸收峰的位置、强度、形状均发生了突跃现象 ,并由此可以验证多元醇及其二元体系固固相变的机理 .
The phase transition of solid and solid of polyol trimethylolethane (PG), trimethylolmethylamine (TAM) and its binary system was studied by using variable temperature infrared spectroscopy.The results show that in a certain temperature range , The position, intensity and shape of the stretching vibration absorption peak in the thermogravimetric infrared spectroscopy show a sudden jump, and thus the mechanism of the solid phase transition of the polyol and its binary system can be verified.