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 language | English |
|---|---|
| Pages (from-to) | 791-795 |
| Number of pages | 5 |
| Journal | Materials Chemistry and Physics |
| Volume | 77 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - Jan 30 2003 |
| Externally published | Yes |
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Keywords
- Fraction of ionic conductance
- Ionic conductance
- Polyethylene oxide
- Polypyrrole
ASJC Scopus subject areas
- Materials Chemistry
Cite this
Method of evaluating the ionic conductance of polypyrrole films and improvement of ionic conductance of polyethylene oxide-incorporated polypyrrole composite. / Liu, Yu Chuan.
In: Materials Chemistry and Physics, Vol. 77, No. 3, 30.01.2003, p. 791-795.Research output: Contribution to journal › Article
}
TY - JOUR
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
UR - http://www.scopus.com/inward/record.url?scp=0037472289&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0037472289&partnerID=8YFLogxK
U2 - 10.1016/S0254-0584(02)00168-2
DO - 10.1016/S0254-0584(02)00168-2
M3 - Article
AN - SCOPUS:0037472289
VL - 77
SP - 791
EP - 795
JO - Materials Chemistry and Physics
JF - Materials Chemistry and Physics
SN - 0254-0584
IS - 3
ER -