Study of Electrical Conductivity of Para-Toluene Sulfonic Acid Doped Polyaniline/Polyester-Based Polyurethane Blends in the S-Band Frequency Range |
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| Authors: | Mostefa Sayhi Nasreddine Haine Belkacem Belaabed Valérie Vigneras |
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| Institution: | 1. Laboratoire de Physique des Matériaux, Faculté de Physique, USTHB, Bab-Ezzouar, Alger, Algeria;2. Ecole Supérieure des Techniques de l'Aéronautique, DEB, Alger, Algeria;3. Laboratoire de l'Intégration du Matériau au Système CNRS-UMR 5218, ENSCPB, France |
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| Abstract: | Conducting polymer blends were prepared using polyaniline doped with para- toluene sulfonic acid (PTSA-PANI) and a polyester polyol-based polyurethane (PU). The morphological, thermal and dielectric properties of the PTSA-PANI/PU blends in the frequency range of 1–5 GHz (S band) were investigated. It was found that the morphology of the samples was affected by the PTSA-PANI loading, resulting in the formation of agglomerates and pathways when above 10 wt%. The thermal stability of the composites was improved with increased PTSA-PANI loading. The electrical conductivity percolation threshold was obtained at 2.5% of PTSA-PANI loading and the electrical conductivity reached the value of 0.13 S/m at a PTSA-PANI loading of 30 wt%. The obtained results for the PTSA-PANI/PU blends prepared indicate a high potential for their successful use in electrical and electromagnetic applications. |
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| Keywords: | conducting composites dielectric properties percolation polyester polyol polyurethane polyaniline |
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