电致变色/电控荧光双功能聚合物的合成及性能

doi:10.7503/cjcu20180415

高等学校化学学报 ›› 2019, Vol. 40 ›› Issue (1): 147.doi: 10.7503/cjcu20180415

电致变色/电控荧光双功能聚合物的合成及性能

周明娟, 闫莹, 晁单明()

吉林大学化学学院, 长春 130012

收稿日期:2018-06-06 出版日期:2019-01-10 发布日期:2018-10-26
作者简介:联系人简介: 晁单明, 男, 博士, 副教授, 主要从事电活性聚合物的设计合成及应用研究. E-mail: chaodanming@jlu.edu.cn
基金资助:
国家自然科学基金(批准号: 21774046)资助.

Synthesis and Properties of Electrochromic/Electrofluorochromic Bifunctional Polymer^†

ZHOU Mingjuan, YAN Ying, CHAO Danming^*()

College of Chemistry, Jilin University, Changchun 130012, China

Received:2018-06-06 Online:2019-01-10 Published:2018-10-26
Contact: CHAO Danming E-mail:chaodanming@jlu.edu.cn
Supported by:
† Supported by the National Natural Science Foundation of China(No.21774046).

摘要/Abstract

摘要：

将电活性双胺单体4,4'-二氨基二苯醚与1,2,4,5-环己烷四甲酸二酐共聚, 得到电活性聚酰胺酸聚合物. 再通过后功能化方法, 采用酰胺化反应将2-氨基芴引入到聚合物结构中, 合成了荧光聚合物. 通过核磁、红外和凝胶渗透色谱证实了聚合物的结构. 该聚合物在0~0.8 V的电压下展示出可逆的电化学活性. 在利用电压改变苯胺齐聚物链段的氧化状态的过程中, 聚合物薄膜发生了明显的颜色变化, 展现出良好的电致变色性质. 荧光性质随着施加电压的改变而变化, 展现出优异的电控荧光特性.

关键词: 导电高分子, 苯胺齐聚物, 荧光, 电致变色, 电控荧光

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

中图分类号:

O631

TrendMD:

周明娟, 闫莹, 晁单明. 电致变色/电控荧光双功能聚合物的合成及性能. 高等学校化学学报, 2019, 40(1): 147.

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

图/表 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)

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电致变色/电控荧光双功能聚合物的合成及性能

Synthesis and Properties of Electrochromic/Electrofluorochromic Bifunctional Polymer^†

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电致变色/电控荧光双功能聚合物的合成及性能

Synthesis and Properties of Electrochromic/Electrofluorochromic Bifunctional Polymer†

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Synthesis and Properties of Electrochromic/Electrofluorochromic Bifunctional Polymer^†