volume 39 issue 5 pages 537-544

A Conjugated Copolymer Bearing Imidazolium-based Ionic Liquid: Electrochemical Synthesis and Electrochromic Properties

Publication typeJournal Article
Publication date2020-11-25
scimago Q1
wos Q2
SJR0.814
CiteScore7.1
Impact factor4.0
ISSN02567679, 14396203
Organic Chemistry
General Chemical Engineering
Polymers and Plastics
Abstract
An imidazolium-based ionic liquid (IL) modified triphenylamine derivative, namely 1-(4-((4-(diphenylamino)benzoyl) oxy)butyl)-3-methyl imidazole tetrafluoroborate (TPAC6IL-BF4), was designed and synthesized, and further applied with 3,4-ethylene dioxythiophene (EDOT) to prepare conjugated copolymer P(EDOT:TPAC6IL-BF4) via electrochemical polymerization. The cyclic voltammetry curves show that the copolymer P(EDOT:TPAC6IL-BF4) possesses two pairs of redox peaks, which should be ascribed to the redox behaviors of EDOT and triphenylamine. The ultraviolet-visible (UV-Vis) absorption spectrum of P(EDOT:TPAC6IL-BF4) exhibits one maximum absorption peak at 580 nm and a small shoulder characteristic peak at 385 nm under neutral state which are assigned to π-π* conjugated structure of EDOT and triphenylamine. After being applied at the positive voltage, the copolymer color changes from dark blue to light blue, which is close to the color of poly(3,4-ethylenedioxythiophene) (PEDOT). Surprisingly, the copolymer P(EDOT:TPAC6IL-BF4) shows shorter switching time of 0.37 s, 0.30 s at 580 nm and 0.38 s, 0.45 s at 1100 nm compared with PEDOT. It is more intriguing that the copolymer P(EDOT:TPAC6IL-BF4) exhibits electrochromism even in free supporting electrolyte. The results confirm that the existence of imidazolium-based ionic liquid has an improvement on the ion diffusion properties and the switching time of conjugated polymer, which may provide a potential direction for the preparation of high-performance electrochromic materials.
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Lv X. et al. A Conjugated Copolymer Bearing Imidazolium-based Ionic Liquid: Electrochemical Synthesis and Electrochromic Properties // Chinese Journal of Polymer Science (English Edition). 2020. Vol. 39. No. 5. pp. 537-544.
GOST all authors (up to 50) Copy
Lv X., Xu L. B., Qian L., YANG Y., Xu Z., Li J., Zhang C. A Conjugated Copolymer Bearing Imidazolium-based Ionic Liquid: Electrochemical Synthesis and Electrochromic Properties // Chinese Journal of Polymer Science (English Edition). 2020. Vol. 39. No. 5. pp. 537-544.
RIS |
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RIS Copy
TY - JOUR
DO - 10.1007/s10118-021-2525-z
UR - https://doi.org/10.1007/s10118-021-2525-z
TI - A Conjugated Copolymer Bearing Imidazolium-based Ionic Liquid: Electrochemical Synthesis and Electrochromic Properties
T2 - Chinese Journal of Polymer Science (English Edition)
AU - Lv, Xiao-Jing
AU - Xu, Li Bin
AU - Qian, Liang
AU - YANG, Yuan-yuan
AU - Xu, Zhi-Yi
AU - Li, Jin
AU - Zhang, Cheng
PY - 2020
DA - 2020/11/25
PB - Springer Nature
SP - 537-544
IS - 5
VL - 39
SN - 0256-7679
SN - 1439-6203
ER -
BibTex |
Cite this
BibTex (up to 50 authors) Copy
@article{2020_Lv,
author = {Xiao-Jing Lv and Li Bin Xu and Liang Qian and Yuan-yuan YANG and Zhi-Yi Xu and Jin Li and Cheng Zhang},
title = {A Conjugated Copolymer Bearing Imidazolium-based Ionic Liquid: Electrochemical Synthesis and Electrochromic Properties},
journal = {Chinese Journal of Polymer Science (English Edition)},
year = {2020},
volume = {39},
publisher = {Springer Nature},
month = {nov},
url = {https://doi.org/10.1007/s10118-021-2525-z},
number = {5},
pages = {537--544},
doi = {10.1007/s10118-021-2525-z}
}
MLA
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MLA Copy
Lv, Xiao-Jing, et al. “A Conjugated Copolymer Bearing Imidazolium-based Ionic Liquid: Electrochemical Synthesis and Electrochromic Properties.” Chinese Journal of Polymer Science (English Edition), vol. 39, no. 5, Nov. 2020, pp. 537-544. https://doi.org/10.1007/s10118-021-2525-z.