Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6661553 | Journal of Electroanalytical Chemistry | 2018 | 20 Pages |
Abstract
N-phenyl succinimide-thiophene conjugated polymer (PTS), was synthesized from thiophene and synthetic N-phenyl succinimide. The polymerization was carried out in heterogeneous phase using proton exchanged silicate clay under suitable conditions. It was showed that the polymerization yield increase with increasing both the catalyst amount and the polymerization time. The reaction products were analyzed by 1H NMR, 13C NMR, FTIR, DSC, UV-visible spectrophotometry and ac-electrical measurements using the two-probe method. Both optical and electrical analysis revealed that the resulting co-polymer is a semiconducting material with an indirect optical band gap of 1.17â¯eV. The electrical conductivity increases as Ïac~f0.93, following a polaron-hopping mechanism, which is thermally activated and promoted with increasing the frequency. The activation energy decreases from 409â¯MeV (at 100â¯Hz) to 181â¯MeV (at 100â¯KHz). The dielectric losses become minimal at high frequencies with εâ²~8.55 and εâ³~0.54.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
Ahmed Mahi, M. Belbachir, Abdelkader Ammari, R. Meghaber, M.I. Ferrahi,