Design, Synthesis and Properties of Organic Conjugated Polymers Based on Thiophene/Indole Structure

Ben DONG; Yun LU

doi:10.14028/j.cnki.1003-3726.2019.01.006

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Design, Synthesis and Properties of Organic Conjugated Polymers Based on Thiophene/Indole Structure

The 30th Anniversary Issue I | 更新时间：2022-09-02

- Design, Synthesis and Properties of Organic Conjugated Polymers Based on Thiophene/Indole Structure
- Polymer Bulletin Vol. 32, Issue 1, Pages: 48-55(2019)
- 作者机构：
  
  南京大学化学化工学院高分子科学与工程系，配位化学国家重点实验室，高性能高分子材料与技术教育部重点实验室，南京 210093
- 作者简介：
- 基金信息：
- DOI：10.14028/j.cnki.1003-3726.2019.01.006
  CLC：
- Published：20 January 2019，
  
  Received：30 September 2018，
  
  Revised：02 November 2018，
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Ben DONG, Yun LU. Design, Synthesis and Properties of Organic Conjugated Polymers Based on Thiophene/Indole Structure. [J]. Polymer Bulletin 32(1):48-55(2019)
DOI：

Ben DONG, Yun LU. Design, Synthesis and Properties of Organic Conjugated Polymers Based on Thiophene/Indole Structure. [J]. Polymer Bulletin 32(1):48-55(2019) DOI： 10.14028/j.cnki.1003-3726.2019.01.006.

摘要

设计合成了一系列含有噻吩结构和2

3-位不同取代官能团的吲哚结构的新型功能单体及其它们对应的聚合物，通过GPC、FTIR等确认了聚合物的结构。TGA及电化学分析结果表明，吲哚部分2位或3位引入吸电子基团可以提高聚合物的热稳定性，同时增大聚合物的能隙。紫外及荧光发射光谱结果表明，供、吸电子效应和链间相互作用以及π-π堆积相互作用等因素共同导致了聚合物具有不同的光谱现象，从而发出蓝绿色、黄色、橙红色、红棕色、浅红色和红色等不同颜色的荧光，在细胞成像方面可有效避免细胞自身的荧光干扰，表现出良好的应用潜力。

Abstract

A series of novel functional monomers containing thiophene and 2

3-substituted indoles were designed and synthesized. Their structures were confirmed by GPC and FTIR. The results of TGA and electrochemical analysis showed that by introducing the electron-absorbing groups into the indole part

the thermal stability of the polymer could be improved and the energy gap of the polymer could be enlarged. The results of UV-vis and fluorescence emission spectroscopy showed that the donor-acceptor effect

the chain-to-chain interaction and the π-π stacking interaction together lead to different spectroscopic phenomena of polymers

emitting fluorescence with different colors such as red

orange-red

light red

blue-green

yellow and brown

which can effectively avoid the fluorescence interference of cells

and showed good application potential.

关键词

共轭聚合物噻吩吲哚光谱现象电化学性质

Keywords

Conjugated polymersThiopheneIndoleSpectroscopic phenomenaElectrochemical properties

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