Yong Cao, Su-chuan Li, Z. Xue
Dec 1, 1986
Citations
1
Influential Citations
321
Citations
Quality indicators
Journal
Synthetic Metals
Abstract
Abstract Aniline oligomers ( n = 2 − 4) of different degrees of oxidation have been synthesized, and their structure determined by 1 H and 13 C n.m.r. and Fournier transform infrared (FTIR) spectra. Comparative studies on electrical conductivity, electronic and FTIR spectra of proton acid- and iodine-doped oligomers and polyaniline (PAn) are presented. We found that PAn prepared by chemical oxidation in pH ⩽ 1 consists of almost alternating benzenoid and quinoid phenyl ring repeat units and protonation leads to the formation of an ion radical delocalized on the chain for oxidized oligomers as well as for polyaniline.