高等学校化学学报 ›› 2000, Vol. 21 ›› Issue (10): 1563.

• 研究快报 • 上一篇    下一篇

Keggin结构钨磷酸/聚丙烯酰胺复合物的制备及光性质研究

冯威1, 张铁锐1, 刘延1, 卢然1, 赵英英1, 姚建年2   

  1. 1. 吉林大学化学系, 长春 130023;
    2. 中国科学院感光化学研究所, 北京 100101
  • 收稿日期:2000-04-25 出版日期:2000-10-24 发布日期:2000-10-24
  • 通讯作者: 赵英英(1938年出生),女,教授,博士生导师,从事有机化学研究.E-mail:zhyy@mail.jlu.edu.cn E-mail:zhyy@mail.jlu.edu.cn
  • 基金资助:

    国家自然科学基金(批准号:59932040)资助

Preparation, Photochromic Properties of Keggin Type Tungstophosphoric Acids Based on Polyacrylamide

FENG Wei1, ZHAGN Tie-Rui1, LIU Yan1, LU Ran1, ZHAO Ying-Ying1, YAO Jian-Nian2   

  1. 1. Department of Chemistry, Jilin University, Changchun 130023, China;
    2. Institute of Photographic Chemistry, Chinese Academy of Sciences, Beijing 100101, China
  • Received:2000-04-25 Online:2000-10-24 Published:2000-10-24

关键词: 12-钨磷酸, 聚丙烯酰胺, 光致变色, 质子给体, 扩散控制

Abstract: A new photochromic complex of Keggin type Tungstophosphate acid/polyacrylamide system was prepared in aqueous solution, and its thin films was made by the dip-coating technique. Their properties were investigated by FT-IR, UV-Vis, as well as TG-DTA measurement. The results showed that this type of system had different properties in solution and in thin films. ESRspectra g values for the one-electron blues were the characteristic of tetragonal W5+ complex in aqueous solution and thin films. The formation of a radical signal of ESRspectra indicated that polyacrylamide was a proton donor, the reversibility for photochromism was relative to the presence and diffusion of oxygen in polymeric network.

Key words: 12-Tungstophosphoric acid, Polyacrylamide, Photochromism, Proton donor, Diffusion-control

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