Abstract
The aim of this paper is to synthesize a new conductive polymer poly(phenylazepane-2-one-furan) (Abbreviated as poly(PAF)), based on the alternation of furan and a synthesized monomer phenylazepane-2-one (PA). The reaction was carried out by cationic polymerization, using a prepared heterogeneous clay catalyst called Maghnite-H+. The structure of the polymer obtained was identified by different characterization methods such as UV-Visible spectroscopy, Fourier Transform Infra-Red spectroscopy, Differential Scanning Calorimetry and Proton/carbon Nuclear Magnetic Resonance. Thermal stability was evaluated by thermogravimetric analysis, showing that poly(PAF) is stable before 200 °C. The operating conditions were optimized at T = 25 °C and t = 4 h to obtain a yield of 90%. The poly(PAF) obtained has a linear structure and a molecular mass Mn of 7300 g/mol, which makes it soluble in common organic solvents. The indirect band-gap was calculated by Tauc formula, its value was found 1.63 eV, showing that poly(PAF) behaves like a semiconductor. Ac electrical conductivity and dielectric properties of poly(PAF) have been investigated in detail in a wide range of frequencies at room temperature.
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