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ABSTRACT A conductive polymer composite of polypyrrole (PPy) and poly(_p_-phenylene terephthalamide) (PPTA) was prepared by the electropolymerization of pyrrole on an electrode covered with

PPTA film prepared by the electrodeposition of PPTA polyanion in dimethylsulfoxide (DMSO) as reported in our previous paper. The supporting electrolyte used during electropolymerization of

pyrrole was tetraethylammonium _p_-toluensulfonate (TsO−). Treatment of the PPy(TsO−)/PPTA composite with hydrochloric acid provided a more thermally stable and mechanically improved

composite film than that untreated with hydrochloric acid. The effect of HCl-treatment for single PPy(TsO−) was investigated by X-ray photoelectron spectroscopy (XPS) and X-ray diffraction

measurement. XPS proved that the dopant of _p_-toluensulfonate anion was partly exchanged for chlorine anion. X-Ray diffraction proved that the interplanar distance of PPy molecules and

intercalation layer thickness decreased with hydrochloric acid treatment. These results led us to consider that improvement of the composite film by the HCl-treatment is mainly attributable

to structural change in poly(pyrrolylium anion). SIMILAR CONTENT BEING VIEWED BY OTHERS SYNTHESIS AND CHARACTERIZATION OF ENHANCED AZO-AZOMETHINE DOPED PANI/HCL CONDUCTING POLYMERS FOR

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ARTICLE PDF REFERENCES * O. Niwa, M. Hikita, and T. Tamamura, _Makromol. Chem., Rapid Commun._, 6, 375 (1985). * M.-A. DePaoli, R. J. Waltman, A. F. Diaz, and J. Bargon, _J. Polym. Sci.,

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AUTHORS AND AFFILIATIONS * Faculty of Engineering, Kyushu Sangyo University, Keiko Koga, Takao Iino, Shigeyuki Ueta & Motowo Takayanagi Authors * Keiko Koga View author publications You

can also search for this author inPubMed Google Scholar * Takao Iino View author publications You can also search for this author inPubMed Google Scholar * Shigeyuki Ueta View author

publications You can also search for this author inPubMed Google Scholar * Motowo Takayanagi View author publications You can also search for this author inPubMed Google Scholar RIGHTS AND

PERMISSIONS Reprints and permissions ABOUT THIS ARTICLE CITE THIS ARTICLE Koga, K., Iino, T., Ueta, S. _et al._ Effects of Dopants on the Structure and Properties of Electroconductive

Composite Film of Polypyrrole and Aramid. _Polym J_ 21, 499–504 (1989). https://doi.org/10.1295/polymj.21.499 Download citation * Issue Date: 01 June 1989 * DOI:

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currently available for this article. Copy to clipboard Provided by the Springer Nature SharedIt content-sharing initiative KEYWORDS * Poly(_p_-phenylene terephthalamide) * Polypyrrole *

Conductivity * Dopant * Composite