PROTONATION OF THE AMINE NITROGENS IN EMERALDINE - EVIDENCE FROM X-RAY PHOTOELECTRON-SPECTROSCOPY

被引:39
作者
KANG, ET [1 ]
NEOH, KG [1 ]
TAN, KL [1 ]
TAN, BTG [1 ]
机构
[1] NATL UNIV SINGAPORE,DEPT PHYS,SINGAPORE 0511,SINGAPORE
关键词
EMERALDINE; PROTONATION; AMINE NITROGENS; NONVOLATILE ACIDS; XPS;
D O I
10.1016/0379-6779(92)90346-K
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The protonations of the emeraldine (EM) oxidation state of polyaniline (PAN) by non-volatile protonic acids, such as H2SO4 and HClO4, have been studied by X-ray photoelectron spectroscopy (XPS). The properly resolved N(1s) core-level spectra reveal that a large proportion of the amine nitrogens in the EM base powders and films is also susceptible to protonation when the samples are loaded with excessive non-volatile acids.
引用
收藏
页码:227 / 233
页数:7
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