:::
期刊論文
學年度102
期刊等級SCI
論文名稱(篇名)Studies on the synthesis of low molecular weight, one-dimensional polyanilines prepared by fast emulsion polymerization using (n-dodecylbenzenesulfonic acid)/HCl emulsifiers
期刊名Polymer International
出版日期2012-04-00
作者中文名謝達華
作者英文名Hsieh, Tar-Hua
全部作者Yi-JhenWu, Ko-Shan Ho, Yu-Wei Cheng, Liang Chao, Yen-ZenWang, Tar-Hwa Hsieh, Tsung-Han Ho and Yu-Kai Han
著作人數8
作者型態Other
使用語言英文
備註Low molecular weight polyaniline nanotubes were prepared by fast emulsion polymerization in the presence of both ndodecylbenzenesulfonic acid (DBSA) and HCl(aq). The anilinium monomers associated with DBSA emulsifiers were found to self-arrange into strands of associated cylindrical micelles before polymerization, as monitored by their optical activity and optical image. In the presence of some HCl(aq), the monomer-associated cylindrical micelles expanded and the polymerization rate could be speeded up. It was found that the low molecular weight (viscosity-averaged molecular weight) polyaniline obtained can easily lead to the formation of highly conductive, one-dimensional nanotubes or nanofibers monitored by the variation of optical activities and λmax of the UV–visible–near IR spectra during polymerization. The DBSA/HCl ratio played an important role in the eventual properties and morphologies of the one-dimensional polyanilines, which can be illustrated by conductivity, SEM and transmission electronmicroscopymeasurements. The resultant one-dimensional polyaniline nanotubes can be arranged into a layered structure by orientation, illustrated by AFM and wide-angle X-ray diffraction.
cron web_use_log