Sulfuric Acid-Doping on Thermally Aged Polyaniline

The effects of aging temperature on the doping reaction of thermally aged polyaniline have been studied. The behavior of the reaction was analyzed with respect to the concentration of sulfuric acid solution, the temperature of the solution and the dipping time. Samples prepared by casting were heate...

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Published inKOBUNSHI RONBUNSHU Vol. 53; no. 8; pp. 509 - 511
Main Authors TSUBAKIHARA, Hiroshi, FUJIMORI, Takashi, NIHONMATSU, Kaoru
Format Journal Article
LanguageJapanese
Published Tokyo The Society of Polymer Science, Japan 01.01.1996
Tsukiji daisan nagaoka
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Abstract The effects of aging temperature on the doping reaction of thermally aged polyaniline have been studied. The behavior of the reaction was analyzed with respect to the concentration of sulfuric acid solution, the temperature of the solution and the dipping time. Samples prepared by casting were heated at 90-170°C and then dipped into aqueous solutions of H2SO4. The degree of protonation was characterized by the peak height of 1150 cm-1 absorption band formed in doping reactions. The results obtained indicate that the protonation has two steps. At first, some kinds of hindrances protecting imines should be removed at a certain proton concentration and/or dipping times. In the second step, protonated imines are formed in a thermally activated reaction.
AbstractList The effects of aging temperature on the doping reaction of thermally aged polyaniline have been studied. The behavior of the reaction was analyzed with respect to the concentration of sulfuric acid solution, the temperature of the solution and the dipping time. Samples prepared by casting were heated at 90-170°C and then dipped into aqueous solutions of H2SO4. The degree of protonation was characterized by the peak height of 1150 cm-1 absorption band formed in doping reactions. The results obtained indicate that the protonation has two steps. At first, some kinds of hindrances protecting imines should be removed at a certain proton concentration and/or dipping times. In the second step, protonated imines are formed in a thermally activated reaction.
Author NIHONMATSU, Kaoru
TSUBAKIHARA, Hiroshi
FUJIMORI, Takashi
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  fullname: NIHONMATSU, Kaoru
  organization: Department of Electronic Engineering and Computer Science, Faculty of Engineering, Kinki University
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References 3) 椿原啓, 岡村洋, 吉村斎, 林光澤, 岡田和之, 坂本昭彦, 高分子論文集, 51, 759 (1994).
6) 椿原啓, 橋本秀之, 岡村洋, 林光澤, 電子情報通信学会論文誌.
5) H. Kuzmany, N.S. Saricifti, H. Neugebauer, and A. Neckel, Phys. Rev. Lett., 60, 212 (1988).
2) 椿原啓, 岡村洋, 岡田和之, 坂本昭彦, 高分子論文集, 51, 565 (1994).
4) J. Tang, X. Jing, B. Wang, and F. Wang, Synth. Met., 24, 231 (1988).
1) 椿原啓, 樋口一, 岡田和之, 坂本昭彦, 高分子論文集, 51, 145 (1994).
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SubjectTerms H2SO4 Doping
Polyaniline
Thermal Aging
Title Sulfuric Acid-Doping on Thermally Aged Polyaniline
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