| Keggin结构钨磷酸／聚丙烯酰胺复合物的制备及光性质研究 |
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| 引用本文： | 冯威,张铁锐,刘延,卢然,赵英英,姚建年. Keggin结构钨磷酸／聚丙烯酰胺复合物的制备及光性质研究[J]. 高等学校化学学报, 2000, 21(10): 1563-1565 |
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| 作者姓名： | 冯威 张铁锐 刘延 卢然 赵英英 姚建年 |
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| 作者单位： | 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 |
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| 基金项目： | 国家自然科学基金! (批准号 :5 993 2 0 40 )资助 |
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| 摘 要： | 无机 有机复合材料的合成是目前令人关注的研究领域[1 ] ,以杂多化合物作为多核配合物 ,通过化学键或氢键作用与有机底物结合形成电荷转移物质的研究已得到广泛重视[2～7] .本文以Ｋｅｇｇｉｎ结构钨磷酸和聚丙烯酰胺为原料合成了钨磷酸 /聚丙烯酰胺复合物 ,表征了其结构特征及光致变色性质 .1 实验方法Ｋｅｇｇｉｎ结构Ｈ3[ＰＷ1 2 Ｏ40 ]·6Ｈ2 Ｏ按文献 [8]方法制备 ,含水量用热重分析测定 .将聚合度为1 1 0 0 0± 1 1 0的聚丙烯酰胺 (ＰＡＭ ) 0 5ｇ、钨磷酸 0 0 5ｇ分别溶解在 50ｍＬ和 1 0ｍＬ水中 ,两者混合后于 65℃下搅拌反应 2…
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| 关 键 词： | 12－钨磷酸 聚丙烯酰胺 光致变色 复合材料 |
| 文章编号： | 0251-0790(2000)10-1563-03 |
Preparation, Photochromic Properties of Keggin Type Tungstophosphoric Acids Based on Polyacrylamide |
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| FENG Wei,ZHAGN Tie-Rui,LIU Yan,LU Ran,ZHAO Ying-ying,YAO Jian-Nian. Preparation, Photochromic Properties of Keggin Type Tungstophosphoric Acids Based on Polyacrylamide[J]. Chemical Research In Chinese Universities, 2000, 21(10): 1563-1565 |
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| Authors: | FENG Wei ZHAGN Tie-Rui LIU Yan LU Ran ZHAO Ying-ying YAO Jian-Nian |
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| Affiliation: | FENG Wei,ZHAGN Tie Rui,LIU Yan,LU Ran,ZHAO Ying Ying * |
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| 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. ESR spectra g values for the one electron blues were the characteristic of tetragonal W 5+ complex in aqueous solution and thin films. The formation of a radical signal of ESR spectra indicated that polyacrylamide was a proton donor, the reversibility for photochromism was relative to the presence and diffusion of oxygen in polymeric network. |
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| Keywords: | Tungstophosphoric acid Polyacrylamide Photochromism Proton donor Diffusion control |
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