聚噻吩的电化学合成与表征研究.

聚噻吩的电化学合成与表征研究

目录

摘要..............................................................................................................................I Abstract.....................................................................................................................II 引言 (1)

第一章绪论 (2)

1.1导电高聚物简介 (2)

1.1.1导电高聚物的定义 (2)

1.1.2导电高聚物的用途 (2)

1.2导电高聚物聚噻吩 (3)

1.2.1噻吩单体的介绍 (3)

1.2.2聚噻吩 (3)

1.2.3聚噻吩的合成方法 (4)

1.2.4聚噻吩的优点及用途 (4)

1.2.5聚噻吩的研究发展 (5)

1.3离子液体 (5)

1.3.1离子液体简介 (5)

1.3.2离子液体的种类 (5)

1.3.3离子液体的合成 (6)

1.3.4离子液体的特点及应用 (6)

1.4.1研究目的意义 (6)

1.4.2研究内容 (7)

第二章实验部分 (8)

2.1仪器和药品 (8)

2.2离子液体的选择 (9)

2.2.1[Bmim][BF4]的结构 (9)

2.2.2[Bmim][BF4]的优点 (9)

2.3在离子液体中合成聚噻吩 (10)

2.3.1电极的选用及制备 (10)

2.3.2聚噻吩的聚合机理 (10)

2.3.3操作步骤 (11)

2.4聚噻吩的红外色谱检测 (12)

第三章结果与讨论 (13)

3.1循环伏安曲线 (13)

3.2红外分析 (14)

3.2.1噻吩的红外分析 (14)

3.2.2聚噻吩的红外分析 (15)

结论与展望 (16)

致谢 (16)

参考文献 (17)

聚噻吩的电化学合成与表征研究

摘要：导电高聚物是一种新型的材料，在导电材料、电池材料、电化学、电致发光等方面都有着广泛的应用。聚噻吩作为导电高聚物主要的成员之一，早在1980年首次被合成出来。聚噻吩以其良好的导电性能，卓越的光学性能，繁多的衍生物和便于操作加工等优点，在电学、光学、电化学等方面都有着巨大的发展潜能。电化学合成法是合成聚噻吩的主要方法之一。电化学合成法不需要加入氧化剂和催化剂，而且操作简单，是一种理想的合成方法。而在“绿色溶剂”离子液体中进行电化学合成导电聚合物实验是一种新式、绿色环保的方法。本文主要研究的是在离子液体1-丁基-3-甲基咪唑四氟硼酸盐（[Bmim][BF4]）中对聚噻吩进行电化学合成。实验结果表明，噻吩能够在[Bmim][BF4]进行很好的聚合反应，生成粉末状的聚合物。实验还对产物进行了红外吸收光谱测定，分析其结构和组成，并对离子液体进行回收。

关键词：导电高聚物聚噻吩离子液体电化学合成

Study on the Electrochemical Synthesis and

Characterization of Poly-hiophene

Abstract:Conductive polymer is a new kind of material.which has wide application in conductive materials,battery materials,electrochemistry and electroluminescence. Poly-thiophene is a one of the main members of conductive polymer,which was first synthesized as early as1980.Poly-thiophene has great potential for development in electrical,optical and electrochemical applications with its excellent electrical properties,excellent optical properties,numerous derivatives and ease of handling. Electrochemical synthesis is one of the main methods for the synthesis of poly-thiophene.Electrochemical synthesis does not require the addition of oxidants and catalysts,and the operation is simple.so it is an ideal synthesis method.And in the "green solvent"ionic liquid electrochemical synthesis of conductive polymer experiment is a new,green and environmentally friendly method.In this paper,the electrochemical synthesis of poly-thiophene is carried out in ionic liquid 1-butyl-3-methylimidazolium tetrafluoroborate([Bmim][BF4]).The experimental results show that thiophene can be well polymerized in[Bmim][BF4]to produce powdery polymer.The product was also characterized by infrared absorption spectroscopy.its structure and composition were analyzed,and the ionic liquid was recovered.

Key words:conductive polymer;poly-thiophene;ionic liquid;electrochemical synthesis