本項研究共分為兩部分，第一部分主要是合成可以降解的導電高分子並將其製成元件探討性質。第二部分主要是在現有的製成上對無甲醛樹脂進行改善，來獲得具有更好性能的樹脂。
在第一章主要介紹了導電高分子的發展歷程，以及導電高分子目前所應用到的領域進行介紹。之後介紹了無甲醛樹脂的開發的緣由和無甲醛樹脂所具有的優勢以及如何在目前現有的技術上加以改進。
第二章主要介紹了各個高分的合成方法，以及通過GPC, H NMR, C NMR,等方法對高分子進行檢驗。之後將高分子製成OFET元件以及薄膜來進行進一步對其特性的探究。並且詳細介紹了元件的製作流程以及在製作過程中所用的藥品的作用進行說明。以及在製作過程中需要注意的事項進行說明。
第三章主要介紹了無甲醛交聯劑的合成方法。並且在原有的合成方式上嘗試更換反應物或者在反應中加入添加劑探究對交聯劑性能的影響。通過這些改變期望可以製得更加符合預期的產品。
在第四章對實驗的結果進行說明和討論。第五章主要是描述薄膜的製備以及各個單體製備。

This research is divided into two parts. The first involves the synthesis of fluorene-containing conjugated polymers to explore their properties. The second part involves the synthesis of formaldehyde-free resin to improve the existing products.
The first chapter introduces the development history of conjugated polymers and the current application fields of these polymers. After that, formaldehyde-free resins are introduced. It involves their advantages and improvement methods based on the current existing technology.
The second chapter describes the synthesis methods of each high fraction, and tests the polymers by GPC, 1H NMR, 13C NMR, and UV-Vis spectrometries. After that, the polymer is used for OFET fabrication to further explore its electric characteristics. The production process of the components and the role of the reagents used in the production process are described in detail. The matters needing attention in the production process are explained.
The third chapter describes the synthetic method of formaldehyde-free crosslinking agent. We try to replace the reactants or additives in the reaction to explore the effect on the performance of the crosslinking agent. By changing these factors, we succeeded to obtain expected products.
The experimental results are described and discussed in Chapter 4. Chapter 5 mainly describes the preparation of thin films and the preparation of individual monomers.

Chapter 1 Introduction................................ 1
1-1Introduction of conjugated polymers.............................................. 1
1-1-1 History and overview...............................................1
1-1-2 Development of conjugated polymers.............................................. 1
1-1-3 Fluorene-based conjugated polymers...............................................3
1-2 Applications of conjugated polymers...............................................5
1-2-1 Overview of applications of conjugated polymers.............................................. 5
1-2-2 Organic photovoltaics............................7
1-2-3 Perovskite solar cells................................................. 10
1-2-4 Organic field-effect transistors........................................... 15
1-3 Introduction of Formaldehyde-Free Crosslinker........................................... 23
1-4 Research purposes................................. 26
Chapter 2 Synthesis and characterization of conjugated polymers.............................................. 28
2-1 Synthesis of conjugated polymer............................................... 28
2-2 Film preparation and UV-Vis analysis.............................................. 29
2-3 OFET device........................................31
Chapter 3 Synthesis and characterization of formaldehyde-free crosslinker........................................... 40
3-1 Synthesis of formaldehyde-free crosslinking agent................................................. 40
3-2 Characteristics of formaldehyde-free crosslinking agent................................................. 41
Chapter 4 Conclusions and suggestions for future work.................................................. 48
Chapter 5 Experimental................................ 49
5-1 General methods................................... 49
5-2 Use polymers to make thin films................................................. 49
5-3 Synthesis of monomers.............................................. 49
5-3-1 Synthesis of 9,9-di(2-ethylhexyl)fluorenyl-2,7-dibromide............................................. 49
5-3-2 Synthesis of 9H-Fluorene-2,7-dicarboxaldehyde,9,9-bis(2- ethylhexyl)-
...................................................... 50
5-3-3 Synthesis of Dimethyl 2,5-dibromoterephthalate.................................. 51
References............................................ 54

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