• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Advanced Functional Materials >Polyacrylonitrile nanofibers: Formation mechanism and applications as a photoluminescent material and carbon-nanofiber precursor
【24h】

Polyacrylonitrile nanofibers: Formation mechanism and applications as a photoluminescent material and carbon-nanofiber precursor

机译：聚丙烯腈纳米纤维：形成机理及作为光致发光材料和碳纳米纤维前体的应用

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

The facile synthesis of polyacrylonitrile (PAN) nanofibers is achieved using a microemulsion polymerization. The detailed formation mechanism of polymer nanofibers is examined using electron microscopy and UV-vis and Fourier transform infrared spectroscopies, and the optoelectronic properties are studied by confocal laser scanning microscopy. The effects of surfactant properties, such as concentration, chain length, and ionic character, as well as monomer structure and polymerization temperature, on the structure of the resulting polymer nanofibers are also investigated extensively. Importantly, PAN nanofibers exhibited novel photoluminescence (PL), which is observed for the first time. The PL of PAN nanofibers is significantly different from that of PAN nanoparticles. The PAN nanofibers are also used as a precursor for carbon nanofibers. The carbonization temperature has a dominant effect on the degree of crystallinity of the resulting carbon nanofibers. This study is the first demonstration of the fabrication of polymer and carbon nanofibers using a convenient polymerization technique.
机译：聚丙烯腈（PAN）纳米纤维的轻松合成是使用微乳液聚合实现的。使用电子显微镜，UV-vis和傅立叶变换红外光谱仪研究了聚合物纳米纤维的详细形成机理，并通过共聚焦激光扫描显微镜研究了光电性能。还广泛研究了表面活性剂性质，例如浓度，链长和离子特性，以及单体结构和聚合温度，对所得聚合物纳米纤维结构的影响。重要的是，PAN纳米纤维表现出新颖的光致发光（PL），这是首次观察到。 PAN纳米纤维的PL与PAN纳米纤维的PL显着不同。 PAN纳米纤维还用作碳纳米纤维的前体。碳化温度对所得碳纳米纤维的结晶度具有主要影响。这项研究是使用便利的聚合技术制造聚合物和碳纳米纤维的首次演示。

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