Direct arylation polymerization toward a D-A type copolymer based on carbazole and benzothiadiazole units - An analogue of PCDTBT

Mohd Sani Sarjadi and Wong, Xin Lin and Farah Hannan Anuar and Zuhair Jamain and Md. Lutfor Rahman (2020) Direct arylation polymerization toward a D-A type copolymer based on carbazole and benzothiadiazole units - An analogue of PCDTBT. Malaysian Journal of Chemistry, 22 (4). pp. 141-149. ISSN 2550-1658

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URL: https://ikm.org.my/ojs/index.php/MJChem/article/vi...

Abstract

Poly[N-9’-heptadecanyl-2,7-carbazole-alt-5,5-(4’,7’-di-2-thienyl-2’,1’,3’-benzothiadiazole)] (PCDTBT) is an attractive material for optoelectronic devices, and has been prevalently prepared by traditional couplings. Despite robust and effective, the traditional methods generally involve the use of toxic organometallic reagents. Direct arylation polymerization (DArP), as a simple, green, and cost-effective alternative to traditional coupling, has been utilized in this work to prepare an analogue of PCDTBT, namely poly[(9-hexadecyl-2,7-carbazole)-alt-(4,7-di(thiophen-2-yl)-2,1,3-benzothiadiazole)] (P1). The co-polymer was obtained in 44% yield and satisfactorily characterized by Fourier-transform infrared spectroscopy (FTIR)and Nuclear magnetic resonance (NMR). UV-Vis absorption spectra showed the presence of inter-chain interaction and aggregation in the solid state. The optical band gap of the co-polymer was found to be in the range of 1.77 -1.81 eV, which is slightly lower than that of PCDTBT (1.88 eV).

Item Type:	Article
Keyword:	Direct Arylation Polymerization , Carbazole , Benzothiadiazole , PCDTBT
Subjects:	Q Science > QC Physics
Department:	FACULTY > Faculty of Science and Natural Resources
Depositing User:	NORAINI LABUK -
Date Deposited:	04 Jul 2021 21:03
Last Modified:	04 Jul 2021 21:03
URI:	https://eprints.ums.edu.my/id/eprint/27602

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