The structure and Electrical Properties of New Poly(benzaldehyde-co-thiophene)/SnO2 Composites

• Published in: Polymer Science. Series A Vol. 63; no. 6; pp. 872 - 878
• Main Authors: Baleh, Hinane, Bouazza, Asmaa, Benhaoua, Chahrazed, Bassaid, Salah, Dehbi, Abdelkader, Belfedal, Abdelkader
• Format: Journal Article
• Language: English
• Published: Moscow Pleiades Publishing 01.11.2021; Springer Nature B.V
• Subjects: Benzaldehyde; Chemistry; Chemistry and Materials Science; Composites; Copolymers; Electrical properties; Electrical resistivity; Energy gap; Fourier transforms; Polymer Sciences; Spectrum analysis; Tin dioxide
• ISSN: 0965-545X; 1555-6107
• DOI: 10.1134/S0965545X21350029

In this study, the synthesis of the composite based on the poly(benzaldehyde- co -thiophene) and tin dioxide with different percentage of SnO 2 (3, 7, and 10%) was performed through chemical oxidative polymerization technique, which is confirmed by Fourier transform infrared spectroscopy, X-ray diffraction. Based on the optical spectra, the copolymer has an optical bandgap energy, E g = 2.30 eV. The results show a decrease in the optical gap energy with the increase in the percentage of SnO 2 from 3 to 7 and to 10%. Electrical conductivity study indicates that conductivity of polymer alone is in the range of ~3.40 × 10 –4 S/cm. This value increases with up to 3.95 × 10 –3 S/cm for the sample containing 3% of SnO 2 , then the electrical conductivity decreases with increase in the content of SnO 2 in the other two samples.