Characterization and formation mechanism of the precipitates generated by irradiation of dicyclohexano-18-crown-6 aqueous solution
文献类型：期刊论文
| 作者 | Yu, Chuhong; Peng, Jing; Li, Jiuqiang; Zhai, Maolin |
| 刊名 | RADIATION PHYSICS AND CHEMISTRY
 |
| 出版日期 | 2012-11-01 |
| 卷号 | 81期号:11页码:1736-1740 |
| 关键词 | Dch18c6 Aqueous Solution Radiation Precipitates Polymerization |
| ISSN号 | 0969-806X |
| DOI | 10.1016/j.radphyschem.2012.06.005 |
| 英文摘要 | Dicyclohexano-18-crown-6 (DCH18C6) aqueous solution was irradiated using Co-60 source and precipitates containing yellow transparent blocks (PA) and powders (PB) were obtained. TGA analysis confirms that both PA and PB have higher thermal stability than DCH18C6. Both DSC and GPC results suggest that PA might be oligomer and PB were ultrahigh molecular weight polymers. The FTIR spectra indicate that both PA and PB have similar chemical structures containing carboxyl and hydroxyl groups. By using scavengers, it was found that the formation of PA and PB is attributed to the radiation-induced radical polymerization of DCH18C6, and center dot OH radical produced by water radiolysis might be a critical species for the formation of PA and PB. These studies help to understand the radiation chemistry behavior of DCH18C6 in the reprocessing of nuclear fuel. Crown Copyright (C) 2012 Published by Elsevier Ltd. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000308118100011 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/49459]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Peng, Jing |
| 作者单位 | Peking Univ, BNLMS, Dept Appl Chem, Coll Chem & Mol Engn, Beijing 100871, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yu, Chuhong,Peng, Jing,Li, Jiuqiang,et al. Characterization and formation mechanism of the precipitates generated by irradiation of dicyclohexano-18-crown-6 aqueous solution[J]. RADIATION PHYSICS AND CHEMISTRY,2012,81(11):1736-1740. |
| APA | Yu, Chuhong,Peng, Jing,Li, Jiuqiang,&Zhai, Maolin.(2012).Characterization and formation mechanism of the precipitates generated by irradiation of dicyclohexano-18-crown-6 aqueous solution.RADIATION PHYSICS AND CHEMISTRY,81(11),1736-1740. |
| MLA | Yu, Chuhong,et al."Characterization and formation mechanism of the precipitates generated by irradiation of dicyclohexano-18-crown-6 aqueous solution".RADIATION PHYSICS AND CHEMISTRY 81.11(2012):1736-1740. |
入库方式： OAI收割
来源：化学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。