Design and synthesis of new conjugated copolymer for methanol sensing application. (2022)

• Record Type: Journal Article
• Authors: Rashmi, H.S.; Vishnumurthy, KA.; Kusanur, Raviraj
• Is Part Of: Materials today. Volume 54:Part 3(2022)
• Page Start: 596
• Page End: 601
• Publication Date: 2022
• Subjects: Conjugated polymers -- Nanocomposites -- Methanol sensor; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2021.10.055
• Languages: English
• ISSNs: 2214-7853

Abstract

Abstract: A conjugated copolymer comprised of aniline and pyrrole was synthesized by oxidative polymerization technique and the copolymer/ZnO nanocomposite thin films were prepared. The composite showed good sensing towards methanol vapours at room temperature. Composite showed faster response and good recovery on exposure to methanol vapours. The composite showed enhanced sensing response for methanol, higher than the pure polymer at room temperature. The nanocomposite exhibited excellent reproducibility, reversibility and with the highest selectivity of 0.1168 towards 100 ppm of methanol vapour. The research finding indicated that this polymer nanocomposite may be a potential candidate as methanol sensor.