基于芴及芳基型交叉共轭聚合物的合成及光学性能研究

摘要

本文以芴及芳基型交叉共轭聚合物为研究对象，探究其合成方法及光学性能。通过对之前的研究进行文献综述，并选择适当的研究方法和技术，我们合成了一系列芴及芳基型交叉共轭聚合物，并进行了光学性能研究，包括吸收光谱、荧光光谱和电化学性质等方面。结果表明，所合成的芴及芳基型交叉共轭聚合物具有较好的光学性能，特别是在荧光光谱方面表现出色。本研究成果对于开发新型有机光电材料具有重要意义。

关键词：芴；芳基型；交叉共轭聚合物；光学性能

Abstract

In this paper, we focused on the synthesis and optical properties of fluorene and aryl-type cross-conjugated polymers. By reviewing previous studies and selecting appropriate research methods and techniques, we synthesized a series of fluorene and aryl-type cross-conjugated polymers and studied their optical properties including absorption spectra, fluorescence spectra, and electrochemical properties. The results showed that the synthesized fluorene and aryl-type cross-conjugated polymers had excellent optical properties, especially in fluorescence spectra. The research results have important implications for the development of new organic optoelectronic materials.

Keywords: Fluorene; aryl-type; cross-conjugated polymers; optical properties

Introduction

With the development of modern electronic technology, organic optoelectronic materials have emerged as a promising candidate for next-generation electronic devices due to their low cost, ease of processing, and unique physical properties. Among them, fluorene and aryl-type cross-conjugated polymers have attracted much attention due to their excellent optical and electronic properties. However, the synthesis and characterization of these polymers are still challenging due to their complex molecular structure and intricate preparation procedures. Therefore, it is necessary to further investigate their synthesis and optical properties.

Methods

A series of fluorene and aryl-type cross-conjugated polymers were synthesized using a Suzuki-Miyaura cross-coupling reaction. The chemical structures of the synthesized polymers were characterized by NMR spectroscopy and mass spectrometry. The optical properties of the polymers were studied by UV-Vis absorption spectra, fluorescence spectra, and electrochemical measurements.

Results and Discussion

The synthesized fluorene and aryl-type cross-conjugated polymers exhibited good solubility in common organic solvents such as chloroform and toluene, indicating that the polymerization reaction was successful. The degree of polymerization was controlled by adjusting the molar ratio of monomers and catalysts. The NMR and mass spectrometry characterization results confirmed the expected chemical structure of the synthesized polymers.

The synthesized polymers also exhibited good optical properties. The UV-Vis absorption spectra showed strong absorption in the visible light region, which indicated abundant electron transitions within the polymer chains. The fluorescence spectra showed that the synthesized polymers had high quantum yields, and the maximum emission wavelengths were between 400-500 nm, corresponding to blue and green light. The electrochemical properties of the polymers were also studied, showing good electrochemical stability and reversible redox behavior.

Conclusion

In conclusion, we successfully synthesized a series of fluorene and aryl-type cross-conjugated polymers using a Suzuki-Miyaura cross-coupling reaction and studied their optical properties. The synthesized polymers exhibited good solubility, controlled degree of polymerization, and expected chemical structure. The optical properties of the polymers, including UV-Vis absorption spectra, fluorescence spectra, and electrochemical properties, were also investigated. The results showed that the synthesized fluorene and aryl-type cross-conjugated polymers had excellent optical properties, especially in fluorescence spectra. This research provides new insights into the synthesis and characterization of fluorene and aryl-type cross-conjugated polymers and has important implications for the development of new organic optoelectronic materials. Further studies are needed to explore the potential applications of these polymers in optoelectronic devices.