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采用在氯仿溶液中超声共混,制备聚3-辛基噻吩(P3OT)和多壁碳纳米管(MWNTs)复合材料.当MWNTs掺杂量为3%时复合材料的电导率为1.43S·m-1,达到纯MWNTs的电导率水平.用FTIR光谱,TG,UV-Vis光谱,XPS和FESEM进行研究分析,认为MWNTs的离域电子与P3OT主链上的π电子之间形成π-π共轭,增加了P3OT主链的有效共轭度,被掺杂的P3OT具有很高的电导率,提高了复合材料的导电性能.MWNTs与被掺杂的P3OT组成相对独立的导体单元,对复合材料的导电网络形成起着主要作用.
The poly (3-octylthiophene) (P3OT) and multi-walled carbon nanotubes (MWNTs) composites were prepared by ultrasonic blending in chloroform solution.The conductivity of the composites was 1.43S · m -1, and reached theconductivity level of pure MWNTs.Using FTIR spectroscopy, TG, UV-Vis spectroscopy, XPS and FESEM to study and analyze, it is considered that the delocalized electrons of MWNTs form π-π Yoke, which increases the effective conjugation degree of the P3OT main chain, the doped P3OT has a high conductivity and improves the electrical conductivity of the composite material. The MWNTs and the doped P3OT are relatively independent conductor units, and the composite material The formation of the conductive network plays a major role.