• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Applied Polymer Science >CONDUCTIVITIES OF POLYSILANES
【24h】

CONDUCTIVITIES OF POLYSILANES

机译：聚硅氧烷的导电性

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Measurements of the electrical conductivities of three types of polysilanes were carried out over a range of de fields and temperatures. These polymers are varied in substituents and structures with formulas of [C6H5SiCH3](n), [(C6H5SiCH3)(70)(CH3SiH)(30)](n), and [(C6H5SiCH3)(50) (C6H5SiH)(30)(CH3Si)(20)](n). Undoped polysilanes behaved as insulators since their conductivities were observed in the range of 10(-10) to 10(-13) S cm(-1), while SbF5-doped polysilanes of all kinds behaved as semiconductors with conductivities in the range of 10(-2) to 10(-4) S cm(-1). No significant difference in conductivities was observed among three SbF5-doped polysilanes although these polymers are very different in chemical properties. These experimental results suggest that electrical conductivities of polysilanes are associated with the Si-Si main-chain backbone rather than with the side groups. It is evident that the dopant is able to diffuse throughout the bulk of the polymer and the conductivity of the doped polymer is a function of the dopant concentration from the result of in situ monitoring of the resistance of the silane homopolymer during SbF5 doping at room temperature. The conductivities of polysilanes appeared to be temperature-dependent. The activation energy for the conduction of SbF5-doped silane copolymer was found to change at its glass transition temperature. (C) 1996 John Wiley & Sons, Inc. [References: 34]
机译：在一定的磁场和温度范围内对三种类型的聚硅烷的电导率进行了测量。这些聚合物的取代基和结构以[C6H5SiCH3]（n），[（C6H5SiCH3）（70）（CH3SiH）（30）]（n）和[（C6H5SiCH3）（50）（C6H5SiH）（30）为式（CH 3 Si）（20）]（n）。未掺杂的聚硅烷可充当绝缘体，因为其电导率在10（-10）到10（-13）S cm（-1）范围内，而各种SbF5掺杂的聚硅烷则可充当电导率在10范围内的半导体（-2）至10（-4）S cm（-1）。在三种掺杂SbF5的聚硅烷中，电导率没有显着差异，尽管这些聚合物的化学性质差异很大。这些实验结果表明，聚硅烷的电导率与Si-Si主链主链有关，而不与侧基有关。明显的是，掺杂剂能够扩散到整个聚合物中，并且掺杂的聚合物的电导率是掺杂剂浓度的函数，这取决于室温下SbF5掺杂过程中硅烷均聚物的电阻现场监测结果。 。聚硅烷的电导率似乎与温度有关。发现用于SbF5掺杂的硅烷共聚物的导电活化能在其玻璃化转变温度下发生变化。 （C）1996 John Wiley＆Sons，Inc. [参考：34]

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号