ノート
示差走査熱量測定による芳香族アゾ化合物アルキル誘導体の熱的挙動の解析
2020 年 69 巻 4.5 号 p. 193-196
詳細
2020 年 69 巻 4.5 号 p. 193-196
An alkylated azo compound (SB6) with an n-hexyl group into 1-phenylazonaphthalene-4-ol was newly synthesized, and its thermal behaviour was investigated by differential scanning calorimetry (DSC) and polarized optical microscope (POM) observation. After melting, the SB6 underwent a supercooled state in the cooling process, and showed an exothermic peak of 27 kJ mol−1 at 15°C in the subsequent heating process. Powder X-ray diffraction (XRD) patterns revealed that the exothermic peak was accompanied by the crystallization. These results indicated that SB6 exhibited cold crystallization. In addition, the activation energy of the cold crystallization was confirmed to be 60 kJ mol−1.
