3,4-乙烯二氧噻吩、吡咯、苯胺共軛高分子的微結構和光電性質研究

聚-3,4-乙烯二氧噻吩是一種廣泛應用的導電高分子，其具有高導電度、優異的環境耐候性、可撓曲、能隙低、氧化還原電位低，廣泛應用於抗靜電塗層材料、生物感測器、固態電容、電磁波遮蔽、電極、或有機光電領域，是一個極具應用價值的導電高分子材料。實驗第一部分利用循環伏安法電聚合及乳化聚合聚合3,4-乙烯二氧噻吩與3-Thiophenecarboxylic acid的共聚物，並比較其差異，實驗過程中發現單體比例和摻雜劑濃度的改變會影響其導電度。實驗第二部分以循環伏安法電聚合苯胺與3,4-乙烯二氧噻吩及吡咯的共聚物，並觀察其導電度及高溫下結構是否變化。由於聚-3,4-乙烯二氧噻吩及吡咯耐熱性質不佳，所以我們加入耐熱性質較好及單體便宜的苯胺，以低廉的聚苯胺來達到增加聚-3,4-乙烯二氧噻吩與聚吡咯的耐熱性質，得到高附加價值的共聚合物，對環境和熱皆有良好的穩定度。

關鍵字

3,4 -乙烯二氧噻吩；共聚物； 3-Thiophenecarboxylic acid

並列摘要

PEDOT is a popular conductive polymer. It has good environmental stability, high conductivity, low energy gap, low redox potential, and it is flexible. PEDOT is widely applied in antistatic material, biosensor, solid capacitor, electromagnetic shielding, electrode and OLED. In short, it is one of the most valuable conductive polymers. We used cyclic voltammetry and emulsification method to copolymerize PEDOT and 3TCA. After that, we compared the differences between cyclic voltammetry and emulsification method. It is found that different proportion of PEDOT and 3TCA will influence the conductivity of copolymer. The concentration of dopant also influenced the conductivity of copolymers. In the second part of the thesis, we used cyclic voltammetry to synthesize a copolymer containing aniline, PEDOT, and pyrrole. We also investigated their conductivity and heat resistance.Finally, we successfully synthesized a copolymer with high heat resistance and environmental stability.

並列關鍵字

Poly-3,4-ethylenedioxythiophene ； 3-Thiophenecarboxylic acid ； Copolymer

參考文獻

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國際替代計量

3,4-乙烯二氧噻吩、吡咯、苯胺共軛高分子的微結構和光電性質研究

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