Effect of Temperature and Acid Molarity on the A.C Conductivity and Dielectric Properties of the Conductive Polymer
The study included preparing pure polyaniline (PANI) and treating it with sulfuric acid at various strengths while keeping the temperature at 27ºC. The morphology of the polymerization products was examined using a scanning electron microscope (SEM). The SEM images revealed a notable effect of how...
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University of Baghdad
2025-06-01
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| Series: | Iraqi Journal of Physics |
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| Online Access: | https://ijp.uobaghdad.edu.iq/index.php/physics/article/view/1390 |
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| author | Salma M. Hassan |
| author_facet | Salma M. Hassan |
| author_sort | Salma M. Hassan |
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The study included preparing pure polyaniline (PANI) and treating it with sulfuric acid at various strengths while keeping the temperature at 27ºC. The morphology of the polymerization products was examined using a scanning electron microscope (SEM). The SEM images revealed a notable effect of how much acid is present on the formation of PANI. The investigation focused on the relationship of alternating electrical conductivity with temperature and frequency. The A.C. electrical conductivity was represented by the variable (s) and varied with frequency, which ranged from 1 kHz to 10 MHz. The value of s was found to be less than 1, and it decreased as the temperature increased. This observation implies a dominant hopping mechanism. The activation energy was measured within the temperature range of 303-423 K at a frequency of 10 kHz; the measured values ranged from 0.249 to 0.12 eV. The relative dielectric for PANI and the constant loss were determined. The data collected indicated that the actual dielectric constant exhibits a decrease with both frequency and temperature.
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| format | Article |
| id | doaj-art-9613469157db4abb9711003c4bb6cff8 |
| institution | Kabale University |
| issn | 2070-4003 2664-5548 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | University of Baghdad |
| record_format | Article |
| series | Iraqi Journal of Physics |
| spelling | doaj-art-9613469157db4abb9711003c4bb6cff82025-08-20T03:45:30ZengUniversity of BaghdadIraqi Journal of Physics2070-40032664-55482025-06-0123210.30723/ijp.v23i2.1390Effect of Temperature and Acid Molarity on the A.C Conductivity and Dielectric Properties of the Conductive PolymerSalma M. Hassan0Department of Physics, College of Science, University of Baghdad, Baghdad, Iraq The study included preparing pure polyaniline (PANI) and treating it with sulfuric acid at various strengths while keeping the temperature at 27ºC. The morphology of the polymerization products was examined using a scanning electron microscope (SEM). The SEM images revealed a notable effect of how much acid is present on the formation of PANI. The investigation focused on the relationship of alternating electrical conductivity with temperature and frequency. The A.C. electrical conductivity was represented by the variable (s) and varied with frequency, which ranged from 1 kHz to 10 MHz. The value of s was found to be less than 1, and it decreased as the temperature increased. This observation implies a dominant hopping mechanism. The activation energy was measured within the temperature range of 303-423 K at a frequency of 10 kHz; the measured values ranged from 0.249 to 0.12 eV. The relative dielectric for PANI and the constant loss were determined. The data collected indicated that the actual dielectric constant exhibits a decrease with both frequency and temperature. https://ijp.uobaghdad.edu.iq/index.php/physics/article/view/1390Electrical ConductivityPANIAcidic SolutionDielectric ConstantChemical Polymerization |
| spellingShingle | Salma M. Hassan Effect of Temperature and Acid Molarity on the A.C Conductivity and Dielectric Properties of the Conductive Polymer Iraqi Journal of Physics Electrical Conductivity PANI Acidic Solution Dielectric Constant Chemical Polymerization |
| title | Effect of Temperature and Acid Molarity on the A.C Conductivity and Dielectric Properties of the Conductive Polymer |
| title_full | Effect of Temperature and Acid Molarity on the A.C Conductivity and Dielectric Properties of the Conductive Polymer |
| title_fullStr | Effect of Temperature and Acid Molarity on the A.C Conductivity and Dielectric Properties of the Conductive Polymer |
| title_full_unstemmed | Effect of Temperature and Acid Molarity on the A.C Conductivity and Dielectric Properties of the Conductive Polymer |
| title_short | Effect of Temperature and Acid Molarity on the A.C Conductivity and Dielectric Properties of the Conductive Polymer |
| title_sort | effect of temperature and acid molarity on the a c conductivity and dielectric properties of the conductive polymer |
| topic | Electrical Conductivity PANI Acidic Solution Dielectric Constant Chemical Polymerization |
| url | https://ijp.uobaghdad.edu.iq/index.php/physics/article/view/1390 |
| work_keys_str_mv | AT salmamhassan effectoftemperatureandacidmolarityontheacconductivityanddielectricpropertiesoftheconductivepolymer |