引用本文:
【打印本页】   【HTML】   【下载PDF全文】   View/Add Comment  【EndNote】   【RefMan】   【BibTex】
←前一篇|后一篇→ 过刊浏览    高级检索
本文已被:浏览 1808次   下载 1237 本文二维码信息
码上扫一扫!
分享到: 微信 更多
XPS Study of Competing Doping Behavior of Polyaniline
Lin Weiwei, Nan Junyi, Tian Yonghui, Liang Huijian
Department ofPolymer Science and Engineering, Zhejiang University, Hangzhou 310027
Abstract:
Thestructure and protonation levelof conductive polyaniline (PANI) chemicallysynthesized in different reactive systems have been investigated using X-ray photoelectron spectroscopy (XPS). Polyaniline prepared in hydrochloric acid aqueoussolution easily undergoes deprotonation under prolonging exposure to vacuum at 60℃. When polyaniline was prepared by solution of coexistence of sodium dode-cylbenzene sulfonate (SDBS) and hydrochloric acid, two kinds of counterion (DBS-and Cl-) occurred competing doping behavior. The results reveal that DBS-take part in associating with positively charged polyaniline backbone, and that the N1sand S2pXPS core levelspectraare verysimilar to thatof polyani-line doped by dodecylbenzene sulfonate acid (DBSA) alone.Howerer, SDBS-HCl coexisting system is more favorabale than that of DBSA alone.
Key words:  Conductive polymer, Polyaniline, Competing Doping, XPS
FundProject:
XPS研究聚苯胺的竞争掺杂行为
林薇薇*, 南军义, 田永辉, 梁辉建
浙江大学高分子科学与工程学系, 杭州 310027
摘要:
采用X射线光电子能谱(XPS)方法对不同反应体系下化学合成的聚苯胺(PANI)的结构和掺杂状况进行了研究。发现盐酸(HCl)掺杂的聚苯胺在样品后处理过程中易发生脱掺杂行为;在十二烷基苯磺酸钠(SDBS)和盐酸共存体系下合成聚苯胺时,对阴离子DBS-和Cl-发生竞争掺杂行为。结果表明DBS-与带正电荷聚苯胺链结合,起到了掺杂和诱导聚苯胺可溶性的作用,它的N1s和S2p谱图与单独采用十二烷基苯磺酸(DBSA)掺杂聚苯胺的谱图相似。但SDBS-HCl复合体系比单独采用DBSA体系更为有利。
关键词:  导电高分子  聚苯胺  竞争掺杂  XPS
DOI:10.1088/1674-0068/13/5/592-598
分类号: