| 硬脂酸镍与焦性没食子酸的热致变色反应研究 |
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| 引用本文： | 梁海燕,李金培.硬脂酸镍与焦性没食子酸的热致变色反应研究[J].影像科学与光化学,2007,25(1):50-56. |
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| 作者姓名： | 梁海燕 李金培 |
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| 作者单位： | 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 |
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| 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.
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| 关 键 词： | 硬脂酸镍 热致变色 焦性没食子酸 吸收光谱 |
| 收稿时间： | 2006-09-12 |
Study on the Thermochromism of Nickel Stearate and Pyrogallic Acid |
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| LIANG Hai-yan,LI Jin-pei.Study on the Thermochromism of Nickel Stearate and Pyrogallic Acid[J].Imaging Science and Photochemistry,2007,25(1):50-56. |
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| Authors: | LIANG Hai-yan LI Jin-pei |
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| Institution: | 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 |
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| Abstract: | Thermochromism of nickel stearate(NiSt_2) and pyrogallic acid(PGA)was reported.The optical density of polyvinyl alcohol coating of NiSt_2 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 NiSt_2 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. |
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| Keywords: | nickel stearate thermochromism pyrogallic acid absorption spectrum |
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