Title: A NOVEL LIGHT-EMITTING CONJUGATED COPOLYMER BASED ON 1,4-DIETHOXYBENZENE AND 3-METHYLTHIOPHENE VIA ELECTROCHEMICAL POLYMERIZATION
Page Range: p.13-20
Author(s): Yujian Zhang; Chunhui Yu; Mi Ouyang; Nachuan Wang; Cheng Zhang
File size: 436K
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Journal: Polymers and Polymer Composites
Issue Year: ppc
Volume: 20
Issue No: No.1-2
Abstract
A novel light-emitting conjugated copolymer based on 1, 4-diethoxybenzene (DEB) and 3-methylthiophene (MTh) is polymerized electrochemically in acetonitrile containing tetrabutylammonium perchlorate by the direct oxidation of DEB/MTh mixtures. The structure, morphology and electrochemical properties of the obtained copolymer are investigated by Fourier transform infrared spectroscopy, 1H NMR spectrometer, scanning electron microscopy and cyclic voltammetry. The results confirm the achievement of DEB/MTh copolymerisation. UVvis spectra show that the absorption peak of the copolymer red shifts gradually with the decrease of DEB/MTh monomer feed ratio and the applied potential. Moreover, photoluminescence spectra of the copolymer exhibit great change in emission colour from pale blue to pale green with the variety of ratio of two monomers. Therefore, monomer feed ratio and polymerisation potential play important roles in the optical properties of copolymers. 41 Refs.
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