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Issue 35, 2012
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Synthesis and electrochromic properties of polyacrylate functionalized poly(3,4-ethylenedioxythiophene) network films

Leiqiang Qin,a   Jingkun Xu,*ac   Baoyang Lu,*bc   Yao Lu,a   Xuemin Duanb  and  Guangming Nied  
Author affiliations

* Corresponding authors

a Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, China
E-mail: xujingkun@tsinghua.org.cn, lby1258@163.com
Fax: +86-791-83823320
Tel: +86-791-88537967

b School of Pharmacy, Jiangxi Science and Technology Normal University, Nanchang, China

c School of Materials Science & Engineering, Shandong University, Jinan 250061, China

d College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China

Abstract

A novel acrylate modified 3,4-ethylenedioxythiophene (EDOT-AA) was synthesized, and its free radical polymerization and electrochemical polymerization led to the formation of corresponding precursor polymer polyacrylate (PAA) functionalized with 3,4-ethylenedioxythiophene (EDOT-PAA) and uniform electrodeposition of acrylate modified poly(3,4-ethylenedioxythiophene) (PEDOT-AA) and polyacrylate modified poly(3,4-ethylenedioxythiophene) (PEDOT-PAA), respectively. The structure, electrochemical, optical, thermal properties and morphology of as-formed polymers were systematically investigated by FT-IR, cyclic voltammetry, UV–vis, thermogravimetry (TG) and scanning electron microscopy (SEM). Cyclic voltammetry and spectroelectrochemistry studies demonstrated that PEDOT-AA and PEDOT-PAA can be reversibly oxidized and reduced accompanied by obvious color changes from dark brown to transmissive blue for PEDOT-AA, and from magenta to blue for PEDOT-PAA. The introduction of the acrylate group significantly improves the electrochromic properties of PEDOT and results in high contrast ratios (ΔT% = 50.9 % at 620 nm for PEDOT-AA) and coloration efficiencies (339 cm2 C−1 for PEDOT-AA and 211 cm2 C−1 for PEDOT-PAA), low switching voltages and fast response time (1.4 s for PEDOT-AA and 0.9 s for PEDOT-PAA).

Graphical abstract: Synthesis and electrochromic properties of polyacrylate functionalized poly(3,4-ethylenedioxythiophene) network films

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Article information

https://doi.org/10.1039/C2JM32457A
Submitted
19 Apr 2012
Accepted
13 Jul 2012
First published
03 Aug 2012
J. Mater. Chem., 2012,22, 18345-18353
Article type
Paper
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Synthesis and electrochromic properties of polyacrylate functionalized poly(3,4-ethylenedioxythiophene) network films

L. Qin, J. Xu, B. Lu, Y. Lu, X. Duan and G. Nie, J. Mater. Chem., 2012, 22, 18345
DOI: 10.1039/C2JM32457A

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