| 硅油的结构和时域介电谱 |
| |
| 引用本文： | 陈敏,于少萍,沈韩,李景德.硅油的结构和时域介电谱[J].物理化学学报,1998,14(12):1108-1111. |
| |
| 作者姓名： | 陈敏 于少萍 沈韩 李景德 |
| |
| 作者单位： | Department of Physics,Zhongshan University,Guangzhou 510275 |
| |
| 摘 要： | 有机物结构常分级描述．频域介电谱方法只能觉察一级结构的极化，对二和三级结构很不灵敏．时域介电谱方法则可分辨出高级结构的丰富信息．在水和甘油等极性液体中，极谱电流的存在使时域测量无法进行．但苯和正烷系列非极性液体却存在有意义的时域谱1]．硅油具有强的极性键，
|
| 关 键 词： | 二甲基硅油 介电谱 慢极化效应 |
| 收稿时间： | 1997-12-30 |
| 修稿时间： | 1998-03-09 |
The Structure and Time Domain Dielectric Spectroscopy of Polydimethlsiloxane |
| |
| Chen Min, Yu Shaoping, Shen Han, Li Jingde.The Structure and Time Domain Dielectric Spectroscopy of Polydimethlsiloxane[J].Acta Physico-Chimica Sinica,1998,14(12):1108-1111. |
| |
| Authors: | Chen Min Yu Shaoping Shen Han Li Jingde |
| |
| Institution: | Department of Physics,Zhongshan University,Guangzhou 510275 |
| |
| Abstract: | The dielectric spectroscopy of polydimethylsiloxane is measured in temperature range of 190 to+120℃ The variation of frequency domain dielectric constant is very small, but time domain slow dielectric constants have high peaks at 120 and +80℃. According to H31 structure of molecule, the results can be explained. The time domain method can detect trace impurity of water to2×10-7 in polydimethylsiloxane. |
| |
| Keywords: | Polydimethylsiloxane Dielectric spectroscopy Slow polarization effect |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《物理化学学报》浏览原始摘要信息 |
| 点击此处可从《物理化学学报》下载免费的PDF全文 |
