Sonochemical preparation of photochromic nanocomposite thin film based on polyoxometalates well dispersed in polyacrylamide
文献类型：期刊论文
| 作者 | Feng, W; Zhang, TR; Liu, Y; Lu, R; Zhao, YY; Li, TJ; Yao, JN |
| 刊名 | JOURNAL OF SOLID STATE CHEMISTRY
 |
| 出版日期 | 2002-11-15 |
| 卷号 | 169期号:1页码:1-5 |
| 关键词 | Sonochemical Preparation Polyoxometalate Polyacrylamide Thin Film Photochromism |
| ISSN号 | 0022-4596 |
| 英文摘要 | Novel photochromic nanocomposite thin film containing phosphotungstic acid entrapped in polyacrylamide was prepared using ultrasound technique. TEM image revealed that the polyoxometalates nanoparticles with narrow size distribution were finely dispersed in polymer matrix. IR spectra showed that the Keggin geometry of polyoxometalates was still preserved inside the composite film and strong Coulombic interaction was built between heteropolyoxometalates and polyacrylamide via hydrogen bond. It was found that the thermal stability of the hybrid film was lower than that of pure polymer but the film was stable enough for photochromic application from the TG-DTA curves. The transparent film changed from colorless to blue under UV irradiation and showed reversible photochromism. The bleaching process occurred when the film was in contact with air or 02 in the dark. The photoreduced process was in accordance with radical mechanism. (C) 2002 Elsevier Science (USA). All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000180197700001 |
| 出版者 | ACADEMIC PRESS INC ELSEVIER SCIENCE |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/79041]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Lu, R |
| 作者单位 | 1.Jilin Univ, Dept Chem, Changchun 130023, Peoples R China 2.Chinese Acad Sci, Inst Chem, Ctr Mol Sci, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Feng, W,Zhang, TR,Liu, Y,et al. Sonochemical preparation of photochromic nanocomposite thin film based on polyoxometalates well dispersed in polyacrylamide[J]. JOURNAL OF SOLID STATE CHEMISTRY,2002,169(1):1-5. |
| APA | Feng, W.,Zhang, TR.,Liu, Y.,Lu, R.,Zhao, YY.,...&Yao, JN.(2002).Sonochemical preparation of photochromic nanocomposite thin film based on polyoxometalates well dispersed in polyacrylamide.JOURNAL OF SOLID STATE CHEMISTRY,169(1),1-5. |
| MLA | Feng, W,et al."Sonochemical preparation of photochromic nanocomposite thin film based on polyoxometalates well dispersed in polyacrylamide".JOURNAL OF SOLID STATE CHEMISTRY 169.1(2002):1-5. |
入库方式： OAI收割
来源：化学研究所
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