Citation: Hui Sun, Bao-yang Lu, Du-fen Hu, Xue-min Duan, Jing-kun Xu, Shi-jie Zhen, Kai-xin Zhang, Xiao-fei Zhu, Li-qi Dong, Dai-ze Mo. Electrosynthesis and Characterization of Aminomethyl Functionalized PEDOT with Electrochromic Property[J]. Chinese Journal of Polymer Science, ;2015, 33(11): 1527-1537. doi: 10.1007/s10118-015-1693-0 shu

Electrosynthesis and Characterization of Aminomethyl Functionalized PEDOT with Electrochromic Property

Received Date: 8 April 2015
Revised Date: 9 May 2015

Fund Project: This work was financially supported by the National Natural Science Foundation of China (Nos. 51263010, 51303073, 51272096 and 51403008), Natural Science Foundation of Jiangxi Province (Nos. 20122BAB216011, 20142BAB206028 and 2014BAB216029) and the Science and Technology Landing Plan of Universities in Jiangxi province (No. KJLD14069).

We herein report the electrosynthesis of an aminomethyl functionalized poly(3,4-ethylenedioxythiophene) (PEDOT) derivative, poly(2￠-aminomethyl-3,4-ethylenedioxythiophene) (PEDOT-MeNH2), in CH2Cl2-Bu4NPF6 (0.1 molL-1) system containing 2% boron trifluoride diethyl etherate (BFEE). The electrochemical behavior, structure characterization, thermal properties and surface morphology of this novel polymer were systematically investigated by cyclic voltammetry (CV), Fourier-transform infrared spectroscopy (FTIR), thermogravimetry (TG) and scanning electron microscopy (SEM), respectively. Electrochemistry results demonstrated that PEDOT-MeNH2 film displayed good redox properties and high electrochemical stability. Besides, PEDOT-MeNH2 films exhibited the electrochromic nature with obvious color changing from purple in the reduced form to blue upon oxidation. By further investigation, kinetic studies revealed that PEDOT-MeNH2 film had decent contrast ratio (41.8%), favorable coloration efficiency (152.1 cm2C-1), low switching voltages and moderate response time (2.4 s). Satisfactory results implied that the obtained PEDOT-MeNH2 film is a promising optoelectronic material and holds promise for electrochromic devices and display applications.
- Conducting polymers,
- Poly(3,4-ethylenedioxythiophene) derivatives,
- Aminomethyl group,
- Electrochemical polymerization,
- Electrochromics
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沈阳化工大学材料科学与工程学院沈阳 110142