Proceedings of International Conference on Applied Innovation in IT
2026/03/31, Volume 14, Issue 1, pp.629-640
Enhanced Dielectric Properties of Polyaniline Films with Manganese Dioxide and Zinc Oxide Nanorods in a Polyvinyl Alcohol (PVA) Matrix
Abdulwahhab H. Majeed, Leqaa A. Mohammed, Omar G. Hammoodi, Israa K.Mohammed, Tabark Ibrahem Kamel, Medea Ali Sultan, Sarah Zidane Khalaf, Zaid H. Mahmoud, Mustafa A. Alheety, M. Z. A. Yahya, I. M. Noor and Pramod K. Singh Abstract: In this study, polyaniline (PANI) was synthesized via oxidative polymerization, and nanoparticles of manganese oxide (MnO2) and zinc oxide (ZnO) were prepared. The binary compounds, PANI-MnO2 and PANI-ZnO, were synthesized by in situ polymerization, where the oxides were mixed with aniline and polymerized in an ice bath using ammonium persulfate (APS) as the oxidizing agent. The resulting compounds were characterized using (FTIR, XRD and SEM). The polymer films were subsequently prepared, and the films containing polyvinyl alcohol (PVA) were characterized for their real and imaginary dielectric constants and electrical conductivity, using an LCR meter in order to measurement AC current. The PANI-MnO2/PVA film exhibited highest intrinsic dielectric constant as compared to other specimens. The as-prepared PANI-ZnO/PVA film showed higher imaginary dielectric constant as compared to the original pure PVA film, indicating its better response to the variation of electric field. The PANI-ZnO/PVA film also stood first in the rank of the conductivity characteristics. Unlike pure PVA film, which showed unfavourable results in all these properties, the conductivity doping materials were absent in the control films.
Keywords: MnO2, ZnO, PANi, Nanocomposite and Dielectric Properties.
DOI: Under indexing
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