| XPS研究聚苯胺的竞争掺杂行为 |
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| 引用本文： | 林薇薇,南军义,田永辉,梁辉建.XPS研究聚苯胺的竞争掺杂行为[J].化学物理学报(中文版),2000,13(5):592-598. |
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| 作者姓名： | 林薇薇 南军义 田永辉 梁辉建 |
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| 作者单位： | 浙江大学高分子科学与工程学系, 杭州 310027
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| 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。
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| 关 键 词： | 导电高分子 聚苯胺 竞争掺杂 |
XPS Study of Competing Doping Behavior of Polyaniline |
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| Lin Weiwei,Nan Junyi,Tian Yonghui,Liang Huijian.XPS Study of Competing Doping Behavior of Polyaniline[J].化学物理学报(中文版),2000,13(5):592-598. |
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| Authors: | Lin Weiwei Nan Junyi Tian Yonghui Liang Huijian |
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| 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. |
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| Keywords: | XPS |
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