Synthesis and Properties of Electrochromic/Electrofluorochromic Bifunctional Polymer†

doi:10.7503/cjcu20180415

Abstract

Abstract:

A novel polyamic acid bearing oligoaniline pendant was synthesized via copolymerization, followed by post-polymerization of fluorene through the amidation reaction with the assistance of DCC/DMAP. The resultant polymer was characterized in detail through ¹H NMR, FTIR and GPC. As expected, this electroactive polymer exhibits good electrochromic performance with high optical contrast value, rapid switching rate and satisfied coloration efficiency. Moreover, a novel electrofluorochromic feature is easily achieved through the introduction of fluorescent fluorene groups into the polymeric architecture. This dual electrochromic and electrofluorochromic polymer shows great potential in various intelligent applications, such as sensors, displays, and wearable devices.

Key words: Conducting polymer, Oligoaniline, Fluorescence, Electrochromic, Electrofluorochromic

CLC Number:

O631

TrendMD:

ZHOU Mingjuan, YAN Ying, CHAO Danming. Synthesis and Properties of Electrochromic/Electrofluorochromic Bifunctional Polymer^†[J]. Chem. J. Chinese Universities, 2019, 40(1): 147.

Figures/Tables 6

Scheme 1 Scheme 1 Synthetic routes of electroactive fluorescent POA

Fig.1 1H NMR spectrum(A) and Fourier-transform infrared spectrum(B) of POA

Fig.2 Cyclic voltammogram of POA/ITO electrode in CH3CN with 0.1 mol/L TBAP

Fig.3 Transmittance spectra of POA/ITO electrode in CH3CN with 0.1 mol/L TBAP at different potentials(0—1.0 V) with a residence time of 300 s(A), transmittance changes monitored at 700 nm of POA/ITO electrode when the applied potential was switched between 0 and 1.0 V with a residence time of 30 s(B), the photographs of electrochromic electrode at different potentials(C) and molecular structures of oligoaniline units at different oxidation states(D)

Fig.4 Fluorescent spectra of POA DMAc solution as oxidized/reduced using ammonium persulfate/hydrazine hydrate

Fig.5 Fluorescence spectra of POA/ITO electrode in CH3CN with 0.1 mol/L TBAP at different potentials from 0 to 1.0 V with a residence time of 300 s(A) and fluorescence change monitored at 415 nm of POA/ITO electrode between 0 V and 1.0 V with a residence time of 30 s(λex=315 nm)(B)

References 18

[1]	Mortimer R. J., Chemical Society Reviews, 1997, 26, 147—156
[2]	Eh A. L. S., Tan A. W. M., Cheng X., Magdassi S., Lee P. S., Energy Technology,2018, 6, 33—45
[3]	Granqvist C. G., Arvizu M. A., Bayrak P. I., Qu H. Y., Wen R. T., Electrochimica Acta,2018, 259, 1170—1182
[4]	Granqvist C. G., Thin Solid Films, 2014, 564, 1—38
[5]	Lv X., Li W., Ouyang M., Zhang Y., Wright D. S., Zhang C.,J. Mater. Chem. C,2017, 5, 12—28
[6]	Neo W. T., Ye Q., Chua S. J., Xu J., J. Mater. Chem. C,2016, 4, 7364—7376
[7]	Amb C. M., Dyer A. L., Reynolds J. R., Chem. Mater.,2011, 23, 397—415
[8]	Tu L., Jia C., Wen X., Deng L., Tang W., Progress in Chemistry, 2010, 22, 2053—2059
[9]	Lv Y., Liu Y., Pan Y., Liu G., Chen J., Guo Y., Chu W., Shen L., Zhang C., Chem. J. Chinese Universities,2017, 38(3), 484—494
	(吕耀康, 刘幼幼, 潘云, 刘刚, 陈钧, 郭芸, 初文静, 慎炼, 张诚. 高等学校化学学报, 2017, 38(3), 484—494)
[10]	Ji Y., Qin C., Niu H., Sun L., Bai X., Dyes and Pigments,2015, 117, 72—82
[11]	Gospodinova N., Skorokhoda T., Lobaz V., Macromolecules,2018, 51, 2227—2231
[12]	Xiong S., Lan J., Yin S., Wang Y., Kong Z., Gong M., Wu B., Chu J., Wang X. Zhang R., Li Y., Solar Energy Materials and Solar Cells,2018, 177, 134—141
[13]	Gao J., Liu D. G., Sansinena J. M., Wang H. L., Adv. Funct. Mater.,2004, 14, 537—543
[14]	Wei Z., Faul C. F. J., Macromol. Rapid Commun.,2008, 29, 280—292
[15]	Jia X., Chao D., Liu H., He L., Zheng T., Bian X., Wang C., Polym. Chem., 2011, 2, 1300—1306
[16]	Li Y., Zhou Y., Jia X., Liu X., Wang C., Chao D., J. Polym. Sci., Part A: Polym. Chem.,2018, 56, 412—419
[17]	Chao D., Jia X., Bai F. Liu H., Cui L., Berda E., Wang C., J. Mater. Chem. C,2012, 22, 3028—3034
[18]	Shi J. Y., MacDiarmid A. G., Synth. Met.,2001, 123, 251—262