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Dielectric Permittivity, AC Electrical Conductivity and Conduction Mechanism of High Crosslinked-Vinyl Polymers and Their Pd(OAc)(2) Composites
| Title: | Dielectric Permittivity, AC Electrical Conductivity and Conduction Mechanism of High Crosslinked-Vinyl Polymers and Their Pd(OAc)(2) Composites |
| Authors: | Elbayoumy, Elsayed Browse this author | | El-Ghamaz, Nasser A. Browse this author | | Mohamed, Farid Sh Browse this author | | Diab, Mostafa A. Browse this author | | Nakano, Tamaki Browse this author →KAKEN DB |
| Keywords: | metal polymer composites | | electrical conductivity | | dielectric permittivity | | semiconductors | | high crosslinked-vinyl polymers |
| Issue Date: | 1-Sep-2021 |
| Publisher: | MDPI |
| Journal Title: | Polymers |
| Volume: | 13 |
| Issue: | 17 |
| Start Page: | 3005 |
| Publisher DOI: | 10.3390/polym13173005 |
| Abstract: | Semiconductor materials based on metal high crosslinked-vinyl polymer composites were prepared through loading of Pd(OAc)(2) on both Poly(ethylene-1,2-diyl dimethacrylate) (poly(EDMA)) and poly(ethylene-1,2-diyl dimethacrylate-co-methyl methacrylate) (Poly(EDMA-co-MMA)). The thermochemical properties for both poly(EDMA) and poly(EDMA-co-MMA) were investigated by thermal gravimetric analysis TGA technique. The dielectric permittivity, AC electrical conductivity and conduction mechanism for all the prepared polymers and their Pd(OAc)(2) composites were studied. The results showed that the loading of polymers with Pd(OAc)(2) led to an increase in the magnitudes of both the dielectric permittivity and AC electrical conductivity (sigma(ac)). The value of sigma(ac) increased from 1.38 x 10(-5) to 5.84 x 10(-5) S m(-1) and from 6.40 x 10(-6) to 2.48 x 10(-5) S m(-1) for poly(EDMA) and poly(EDMA-co-MMA), respectively, at 1 MHz and 340 K after loading with Pd(OAc)(2). Additionally, all the prepared polymers and composites were considered as semiconductors at all the test frequencies and in the temperature range of 300-340 K. Furthermore, it seems that a conduction mechanism for all the samples could be Quantum Mechanical Tunneling (QMT). |
| Type: | article |
| URI: | http://hdl.handle.net/2115/82953 |
| Appears in Collections: | 触媒科学研究所 (Institute for Catalysis) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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