Method of evaluating the ionic conductance of polypyrrole films and improvement of ionic conductance of polyethylene oxide-incorporated polypyrrole composite

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Abstract

In this study, stainless steel electrode alternate current (ac) impedance associated with direct current (dc) polarization measurements were proposed to successfully evaluate the contribution of ionic conductance (tion) to the bulk conductance of polypyrrole (PPy) in various relative humidities (RH). The fraction of tion, defined as the ratio of (1/Ri) to ((1/Ri)+(1/Re)), was used as a quantitative index for the contribution of ionic conductance. The results showed that the tion are 0.15, 0.29, and 0.46 for PPy in 5, 25, and 50% RH, respectively. Also, the tion can increase from 0.12 to 0.22 in dry nitrogen after PPy was modified with polyethylene oxide (PEO).

Original languageEnglish
Pages (from-to)791-795
Number of pages5
JournalMaterials Chemistry and Physics
Volume77
Issue number3
DOIs
Publication statusPublished - Jan 30 2003
Externally publishedYes

Fingerprint

polypyrroles
Polypyrroles
Polyethylene oxides
polyethylenes
composite materials
oxides
humidity
Atmospheric humidity
Composite materials
Stainless Steel
stainless steels
Nitrogen
Stainless steel
direct current
impedance
Polarization
nitrogen
Electrodes
electrodes
polarization

Keywords

  • Fraction of ionic conductance
  • Ionic conductance
  • Polyethylene oxide
  • Polypyrrole

ASJC Scopus subject areas

  • Materials Chemistry

Cite this

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title = "Method of evaluating the ionic conductance of polypyrrole films and improvement of ionic conductance of polyethylene oxide-incorporated polypyrrole composite",
abstract = "In this study, stainless steel electrode alternate current (ac) impedance associated with direct current (dc) polarization measurements were proposed to successfully evaluate the contribution of ionic conductance (tion) to the bulk conductance of polypyrrole (PPy) in various relative humidities (RH). The fraction of tion, defined as the ratio of (1/Ri) to ((1/Ri)+(1/Re)), was used as a quantitative index for the contribution of ionic conductance. The results showed that the tion are 0.15, 0.29, and 0.46 for PPy in 5, 25, and 50{\%} RH, respectively. Also, the tion can increase from 0.12 to 0.22 in dry nitrogen after PPy was modified with polyethylene oxide (PEO).",
keywords = "Fraction of ionic conductance, Ionic conductance, Polyethylene oxide, Polypyrrole",
author = "Liu, {Yu Chuan}",
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T1 - Method of evaluating the ionic conductance of polypyrrole films and improvement of ionic conductance of polyethylene oxide-incorporated polypyrrole composite

AU - Liu, Yu Chuan

PY - 2003/1/30

Y1 - 2003/1/30

N2 - In this study, stainless steel electrode alternate current (ac) impedance associated with direct current (dc) polarization measurements were proposed to successfully evaluate the contribution of ionic conductance (tion) to the bulk conductance of polypyrrole (PPy) in various relative humidities (RH). The fraction of tion, defined as the ratio of (1/Ri) to ((1/Ri)+(1/Re)), was used as a quantitative index for the contribution of ionic conductance. The results showed that the tion are 0.15, 0.29, and 0.46 for PPy in 5, 25, and 50% RH, respectively. Also, the tion can increase from 0.12 to 0.22 in dry nitrogen after PPy was modified with polyethylene oxide (PEO).

AB - In this study, stainless steel electrode alternate current (ac) impedance associated with direct current (dc) polarization measurements were proposed to successfully evaluate the contribution of ionic conductance (tion) to the bulk conductance of polypyrrole (PPy) in various relative humidities (RH). The fraction of tion, defined as the ratio of (1/Ri) to ((1/Ri)+(1/Re)), was used as a quantitative index for the contribution of ionic conductance. The results showed that the tion are 0.15, 0.29, and 0.46 for PPy in 5, 25, and 50% RH, respectively. Also, the tion can increase from 0.12 to 0.22 in dry nitrogen after PPy was modified with polyethylene oxide (PEO).

KW - Fraction of ionic conductance

KW - Ionic conductance

KW - Polyethylene oxide

KW - Polypyrrole

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