Title: Electrosynthesis and characterisation of poly(3,4-ethylenedioxythiophene) derivative with a L-proline methyl ester functionality

Authors: Fan Yang; Long Zhang; Xuemin Duan; Jingkun Xu; Dufen Hu; Kaixin Zhang

Addresses: School of Pharmacy, Jiangxi Science and Technology Normal University, Nanchang, 330013, China ' School of Pharmacy, Jiangxi Science and Technology Normal University, Nanchang, 330013, China ' School of Pharmacy, Jiangxi Science and Technology Normal University, Nanchang, 330013, China ' Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang, 330013, China ' School of Pharmacy, Jiangxi Science and Technology Normal University, Nanchang, 330013, China ' School of Pharmacy, Jiangxi Science and Technology Normal University, Nanchang, 330013, China

Abstract: Poly(3,4-ethylenedioxythiophen-yl-methoxy acetyl L-proline methyl ester), a L-proline methyl ester functionalised poly (3,4- ethylenedioxythiophene) derivative (PEDOT-L-ProMe), was synthesised electrochemically via the potentiostatic polymerisation. The monomer was synthesised by an efficient three-step sequence using 2-hydroxymethyl-3, 4-ethylenedioxythiophene (EDOT-MeOH) as the starting material. The resulting PEDOT-L-ProMe films were characterised by different methods such as cyclic voltammetry, Fourier transform infrared, ultraviolet-visible techniques, fluorescence and thermogravimetric analysis. The films displayed good reversible redox activity and remarkable thermal stability. Especially the fluorescent spectra indicated that PEDOT-L-ProMe was a green-emitter with maximum emission centred at 562 nm and 556 nm corresponding to doped and dedoped films.

Keywords: conducting polymers; poly(3,4-ethylenedioxythiophene); proline; characterisation; electrosynthesis; L-proline methyl ester functionality; redox activity; thermal stability; fluorescence.

DOI: 10.1504/IJMPT.2015.070080

International Journal of Materials and Product Technology, 2015 Vol.51 No.1, pp.32 - 43

Received: 05 Apr 2014
Accepted: 13 Dec 2014

Published online: 26 Jun 2015 *

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