Fourier transform Infrared (FT-IR) spectroscopy was used to study the melting phase transition of anhydrous octadecanoic acid. The phase transition occurs at 69℃(Tc). In solid phase, the alkyl chains take the all-tra...Fourier transform Infrared (FT-IR) spectroscopy was used to study the melting phase transition of anhydrous octadecanoic acid. The phase transition occurs at 69℃(Tc). In solid phase, the alkyl chains take the all-trans zigzag conformation and the C(?)-C(?)= 0 group adopts trans configuration in the dimers. In liquid state, the alkyl chains convert to gauche conformation and the C(?)C(?)= 0 to cis configuration.展开更多
基金Suported by the National Natural Science Foundation of China
文摘Fourier transform Infrared (FT-IR) spectroscopy was used to study the melting phase transition of anhydrous octadecanoic acid. The phase transition occurs at 69℃(Tc). In solid phase, the alkyl chains take the all-trans zigzag conformation and the C(?)-C(?)= 0 group adopts trans configuration in the dimers. In liquid state, the alkyl chains convert to gauche conformation and the C(?)C(?)= 0 to cis configuration.
