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| Content Provider | Springer Nature Link |
|---|---|
| Author | Quamara, J. K. Singh, Randhir Kaushik, B. K. |
| Copyright Year | 2011 |
| Abstract | Electrical conduction behavior of pristine and iodine doped polyetherimides (PEI) has been investigated under both transient and steady state conditions in the operating temperature range 50–200°C at various electric fields of 12–60 kV/cm. The transient currents show the hyperbolic decay character, and the decay exponent p (a measure of current decay rate) decreases with temperature (T) and doping concentration. The origin of transient currents has been attributed to the dipolar nature of carbonyl groups and the ether linkages present in the main chain of PEI. The low field steady state conduction is ohmic in nature. The magnitudes of ionic jump distance (a) values do not favor an ionic type of conduction as a possible conduction mechanism in pristine as well as iodine doped PEI. The Schottky coefficients estimations do not show the possibility of Schottky type or Poole-Frenkel type conduction mechanisms in the low temperature region (< 120°C), however, in the high temperature region (> 120°C) there is a certain possibility of Poole-Frenkel type conduction mechanism in both pristine and iodine doped samples. The dual slope in the lgI versus 1/T curves for iodine doped samples indicates the presence of more than one type of trapping levels. |
| Starting Page | 586 |
| Ending Page | 596 |
| Page Count | 11 |
| File Format | |
| ISSN | 02567679 |
| Journal | Chinese Journal of Polymer Science |
| Volume Number | 29 |
| Issue Number | 5 |
| e-ISSN | 14396203 |
| Language | English |
| Publisher | Chinese Chemical Society and Institute of Chemistry, CAS |
| Publisher Date | 2011-07-28 |
| Publisher Place | Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Transient currents Electrical conduction Polyetherimide Characterization and Evaluation of Materials Polymer Sciences Condensed Matter Physics Industrial Chemistry/Chemical Engineering |
| Content Type | Text |
| Resource Type | Article |
| Subject | Organic Chemistry Chemical Engineering Polymers and Plastics |
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