Design and synthesis of a polymer for Cr(III) ions sensing

Thakur, A and Chauhan, V and Ramamurthy, PC (2022) Design and synthesis of a polymer for Cr(III) ions sensing. In: 2022 IEEE International Conference on Emerging Electronics, 11- 14 Dec 2022, Bangalore.

PDF ICEE_2022.pdf - Published Version Restricted to Registered users only Download (478kB) | Request a copy

Abstract

A fluorene and amino-based conjugated polymer (PFluDNH2) was designed to selectively detect chromium (III) ions. The synthesis of the sensing polymer molecules was achieved in four steps which involved the formation of a diamino intermediate and the polymerization of this intermediate with a fluorene derivative. The structural elucidation of the synthesized molecules was performed using FTIR, 1H-NMR, 13C-NMR, and UV-Vis spectroscopic techniques. The cyclic-voltammetric experiments were performed to examine the electrochemical properties. Optical properties were studied by the photoluminescence (PL) technique. Synthesized PFluDNH2 displayed enhancement in fluorescence intensity upon selectively interacting with Cr (III) ions by showing chelation-enhanced fluorescent (CHEF) effect. The intensity increased after an excitation wavelength of 350 nm. The synthesized polymer showed good potential for metal ion detection and light-emitting devices.

Item Type:	Conference Paper
Publication:	2022 IEEE International Conference on Emerging Electronics, ICEE 2022
Publisher:	Institute of Electrical and Electronics Engineers Inc.
Additional Information:	The copyright for this article belongs to Institute of Electrical and Electronics Engineers Inc.
Keywords:	chelation enhanced fluorescence; Conjugated polymers; metal ion sensing
Department/Centre:	Division of Interdisciplinary Sciences > Interdisciplinary Centre for Energy Research Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited:	28 Jun 2023 05:15
Last Modified:	28 Jun 2023 05:15
URI:	https://eprints.iisc.ac.in/id/eprint/82183

Actions (login required)

View Item