含噻吩之導電高分子的合成及其電性質研究

Synthesis of thiophene-based conducting polymers and investigate their electrical properties

陳柏汶(PO-WEN CHEN)

指導教授 ： 葉美鈺

中原大學/理學院/化學系/碩士(2022年)

https://doi.org/10.6840/cycu202201459

摘要

導電高分子因具有合成多樣性、易於加工、輕量化及可撓性等優點，為極有發展潛力的導電材料。
在本論文中，我們利用化學氧化聚合合成了一系列新型含噻吩之導電高分子，使用單體為3,4-乙烯二氧噻吩（3,4-ethylenedioxythiophene, E）以及噻吩（Thiophene, T），並運用凝膠滲透層析法鑑定共聚物分子量分布與大小。我們將得到的導電共聚物命名為E1T9、E3T7、E5T5、E7T3和E9T1，並將其製備成薄膜，測量其電化學阻抗譜和傅里葉轉換紅外光譜，系統性探討T和E比例對電性質之影響。
接著我們設計以丙烯醯胺為單體，以二醛官能化改質後的聚乙二醇（DF-PEG 2K）以及N,N'-亞甲基雙丙烯醯胺（N,N'-Methylenebisacrylamide, MBAA）作為交聯劑，並加入五種導電共聚物，配置成水凝膠，接著使用拉力試驗機、流變儀、掃描式電子顯微鏡去證實水凝膠的機械強度，並利用電化學工作站研究電性能。

關鍵字

?吩 ； 導電

並列摘要

Conductive polymers are potential conductive materials due to their advantages of synthetic diversity, easy processing, light weight and flexibility. In this work, we synthesized a series of thiophene-containing conducting polymers by using monomers of 3,4-ethylenedioxythiophene (3,4-ethylenedioxythiophene, E) and thiophene (Thiophene, T) through the chemical oxidative polymerization. We named the obtained conductive copolymers as E1T9, E3T7, E5T5, E7T3 and E9T1, studied their electrochemical impedance spectroscopy, Fourier transform infrared spectroscopy, particle sizes, contact angles, and thermogravimetric analysis.
Furthermore, we prepared five novel hydrogels of GE1T9, GE3T7, GE5T5, GE7T3 and GE9T1, in which acrylamide is the monomer, dialdehyde-functionalized polyethylene glycol (DF-PEG 2K) and N,N'-methylenebisacrylamide (N,N'-Methylenebisacrylamide, MBAA) as the cross-linking agent. We systematically investigated the tensile testing, scanning electron microscope, and an electrochemical workstation. It was found that GE7T3 and GE9T1 have improved the mechanical stretchability, adhesion and electrical performances compared to the control gel.

並列關鍵字

Thiophene ； conductive

參考文獻

第五章 參考文獻

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