热电效应
材料科学
单体
聚合物
高分子化学
碳酸丙烯酯
亚乙基二氧
聚合
共聚物
电解质
化学工程
兴奋剂
塞贝克系数
导电聚合物
物理化学
有机化学
化学
电极
复合材料
烷基
工程类
物理
热力学
热导率
光电子学
作者
Ichiro Imae,Takashi Koumoto,Yutaka Harima
出处
期刊:Polymer
[Elsevier]
日期:2018-05-01
卷期号:144: 43-50
被引量:9
标识
DOI:10.1016/j.polymer.2018.04.031
摘要
In order to investigate the relationship between thermoelectric properties and chemical structures of conducting polymers, electrochemically-doped polythiophenes partially substituted by ethylenedioxy groups have been synthesized and their thermoelectric properties were measured. Two types of monomers consisting of 3,4-ethylenedioxythiophene (EDOT) and 3-hexylthiophene (HT) with different mole fractions of EDOT have been synthesized. The electrolytic polymerization of these monomers in propylene carbonate solutions containing sulfonated poly(β-hydroxyether) (S-PHE) as an electrolyte gave smooth and lustrous free-standing films. The electrical conductivities and Seebeck coefficients of the polymer films doped with S-PHE were increased with the increase in the temperature or the decrease in the current density during the electrolytic polymerization. By the comparison of thermoelectric properties of S-PHE doped polymer films, it was revealed that the thermoelectric performances were strongly affected by the mole fractions of EDOT in the copolymers.
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