影像科学与光化学 ›› 2007, Vol. 25 ›› Issue (1): 50-56.DOI: 10.7517/j.issn.1674-0475.2007.01.50

• 研究论文 • 上一篇    下一篇

硬脂酸镍与焦性没食子酸的热致变色反应研究

梁海燕1,2, 李金培1   

  1. 1. 中国科学院, 理化技术研究所, 北京, 100101;
    2. 中国科学院, 研究生院, 北京, 100039
  • 收稿日期:2006-09-12 修回日期:2006-10-19 出版日期:2007-01-23 发布日期:2007-01-23
  • 通讯作者: 李金培
  • 基金资助:
    国家自然科学基金(20303025,20573125)

Study on the Thermochromism of Nickel Stearate and Pyrogallic Acid

LIANG Hai-yan1,2, LI Jin-pei1   

  1. 1. Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100101, P.R.China;
    2. Graduate School of Chinese Academy of Sciences, Beijing 100039, P.R.China
  • Received:2006-09-12 Revised:2006-10-19 Online:2007-01-23 Published:2007-01-23

摘要: 本文报道了硬脂酸镍(NiSt2)和焦性没食子酸(Pyrogallic acid,PGA)的热致变色现象,研究了热敏涂层的显色密度随加热温度和时间的变化关系.结果表明,涂层密度随温度的升高和时间的延长而增大.通过溶解度实验和吸收光谱的分析,推测了热致变色的可能产物是NiSt2和PGA生成的某种分子化合物,该分子化合物随浓度的增加可能形成某种分子聚集体,在可见光区产生新的吸收峰.

关键词: 硬脂酸镍, 热致变色, 焦性没食子酸, 吸收光谱

Abstract: Thermochromism of nickel stearate(NiSt2) and pyrogallic acid(PGA)was reported.The optical density of polyvinyl alcohol coating of NiSt2 plus PGA increased linearly with raise of temperature and prolong of time.According to the solubility and absorption spectrum,a molecular compound may have been formed by NiSt2 and PGA during the heating process,and this molecular compound may form one or more kinds of molecular aggregator in solvent by increasing its concentration.The molecular aggregator lead to a new and broad absorption in visible region.

Key words: nickel stearate, thermochromism, pyrogallic acid, absorption spectrum

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