咔唑基四苯乙烯多功能发光材料的合成与性能

罗海媛; 陈介焕; 刘聪; 石光; 李国明; 池振国

doi:10.11777/j.issn1000-3304.2017.16356

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咔唑基四苯乙烯多功能发光材料的合成与性能

研究论文 | 更新时间：2021-01-26

- 咔唑基四苯乙烯多功能发光材料的合成与性能
- Synthesis and Properties of a Multi-functional Luminescent Material with Carbazolyl and Tetraphenylethylene Moiety
- 高分子学报 2017年第8期页码：1277-1284
- 作者机构：
  
  1.华南师范大学化学与环境学院广州 510006
  2.中山大学化学与化学工程学院广州 510275
- 作者简介：
  
  刘聪, E-mail:liucong_011@163.com Cong Liu, E-mail:liucong_011@163.com
- 基金信息：
  
  国家自然科学基金(51203054);博士后科学基金(2014M552192);博士后科学基金(2015T80906)
- DOI：10.11777/j.issn1000-3304.2017.16356
  中图分类号：
- 纸质出版日期：2017-8，
  
  收稿日期：2016-7-26，
  
  修回日期：2016-8-12，
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罗海媛, 陈介焕, 刘聪, 石光, 李国明, 池振国. 咔唑基四苯乙烯多功能发光材料的合成与性能[J]. 高分子学报, 2017,(8):1277-1284.

Luo Hai-yuan, Chen Jie-huan, Liu Cong, Shi Guang, Li Guo-ming, Chi Zhen-guo. Synthesis and Properties of a Multi-functional Luminescent Material with Carbazolyl and Tetraphenylethylene Moiety[J]. Acta Polymerica Sinica, 2017,(8):1277-1284.
罗海媛, 陈介焕, 刘聪, 石光, 李国明, 池振国. 咔唑基四苯乙烯多功能发光材料的合成与性能[J]. 高分子学报, 2017,(8):1277-1284. DOI： 10.11777/j.issn1000-3304.2017.16356.

Luo Hai-yuan, Chen Jie-huan, Liu Cong, Shi Guang, Li Guo-ming, Chi Zhen-guo. Synthesis and Properties of a Multi-functional Luminescent Material with Carbazolyl and Tetraphenylethylene Moiety[J]. Acta Polymerica Sinica, 2017,(8):1277-1284. DOI： 10.11777/j.issn1000-3304.2017.16356.

摘要

设计合成了一个以四苯乙烯为核心，四端连接长烷基链的咔唑基四苯乙烯衍生物（TPECz），该化合物具有典型的聚集诱导发光（AIE）特性.紫外光谱（UV-Vis）、荧光光谱（PL）、热重（TG）和示差扫描量热（DSC）研究表明，该化合物属于深蓝光材料、具有较好的热稳定性，并且对金属Fe

具有很好的识别作用，有望用于金属离子检测；同时，该化合物外围的咔唑基团具有电化学活性，采用电化学聚合方法可制备其聚合物交联荧光薄膜，扫描电镜（SEM）和原子力显微镜（AFM）研究表明，该荧光薄膜表面平整，有望用于制备有机电致发光器件（OLED），可见该化合物是一种多功能材料.

Abstract

A new multi-functional aggregation-induced emission compound (TPECz) was synthesized by introducing carbazole groups to the tetraphenylethylene backbone through long alkyl chains. Its properties were investigated by UV-Visible absorption spectra (UV-Vis)

photoluminescence spectroscopy (PL)

thermogravimetric analyses (TG) and differential scanning calorimetry (DSC). It was found that the molecule emitted weakly in pure THF solution

but emittted strong fluorescence in their aggregated state

indicating that the TPECz was characterized as AIE-active. Meanwhile

the results demonstrated that the TPECz emitted strong blue fluorescence

and possessed good thermal stability with the fluorescence emission wavelength (

=465 nm)

decomposition temperature with 5% weight loss (

) at 381℃ and glass transition temperature (

) at 58.7℃

respectively. It showed that TPECz can visually detect Fe

in H

O-THF mixed solvent (

=98/2) by quenching emission. The detection limit of Fe

in the mixed solvent can be down to 0.2 mmol/L for Fe

ion concentration. Moreover

the detection was of high sensitivity as the addition of other metal ions

including Mg

and Cu

did not induce obvious change on the solution fluorescence intensity. It indicated that TPECz was expected to work as an effective luminescent indicator for qualitative and quantitative detection of Fe

ions. Thanks to the electroactive moieties of the four peripheral carbazole units of TPECz

TPECz can be applied as a precursor to prepare the luminescent network film by electrochemical polymerization using a three-electrode cell with a Ti counter electrode

a Ag/Ag

reference electrode

and a ITO glass working electrode. The resultant cross-linked film was characterized using scanning electron microscopy (SEM) and atomic force microscope (AFM). Moreover

it exhibits deep blue fluorescence with

at 470 nm

so it is a potential material for fabrication of OLED devices. Therefore

TPECz can be used as a multi-functional luminophor.

关键词

四苯乙烯咔唑聚集诱导发光电化学聚合多功能材料

Keywords

TetraphenylethyleneCarbazoleAggregation-induced emissionElectrochemical polymerizationMulti-functional luminophor

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