中文摘要：

3,4-乙撑二氧噻吩（EDOT）以木质素磺酸（LS）作载体,通过化学氧化法聚合形成了聚（3,4-乙撑二氧噻吩）/木质素磺酸（PEDOT/LS）导电复合物.该导电复合物的结构与性能分别采用紫外可见分光光度计、红外光谱仪、zeta电位及粒度分析仪、原子力显微镜、X-射线光电子能谱仪、X-射线衍射仪、四探针测试仪、电泳仪,以及表面电阻仪来表征.结果表明,EDOT能在LS水溶液中氧化聚合,得到水分散性PEDOT/LS导电颗粒.该颗粒是一种聚电解质复合物,等量电荷配比的PEDOT/LS位于内核而富余的亲水性LS包在外层.LS与PEDOT两者之间存在较强的作用力,无法通过电泳分开.X-射线衍射仪结果表明该复合物是无定型的.当LS与EDOT单体质量比从0.7∶1升高至3.0∶1时,复合物的粒径从673 nm降低至348 nm,涂膜表面变得均匀,同时表面电阻从1.9 kΩ/sq上升至87.2 kΩ/sq.用PEDOT/LS配置得到的抗静电剂,可以使玻璃片表面电阻从1012Ω/sq减小至107Ω/sq.

英文摘要：

Poly （3,4-ethlenedioxythiophene）/lignosulfonic acid （PEDOT/LS） conductive compounds was synthesized chemically,using LS not only as a dispersant but also a dopant for PEDOT. The structure and performance were investigated by ultraviolet-visible spectroscopy （UV-Vis）, Fourier transform infrared spectroscopy （FTIR）, zeta potential and particle size analysis, the atomic force microscopy （AFM）, X-ray photoelectron spectroscopy （ XPS）, X-ray diffraction （ XRD ） , four point probes meter, electrophoresis and surface resistivity tests. It showed that PEDOT was successfully polymerized in LS aqueous solution,resulting in water-dispersive PEDOT/LS conductive particles. For the structure of PEDOT/LS particles,the stoichiometric PEDOT/LS complex stays in the inner core and the excess of hydrophilic LS covered on the surface. The interaction between PEDOT and LS is so strong that they can not be separated under electrophoresis. This complex is amorphous according to XRD. When the weight ratio of LS to EDOT increased from 0.7：1 to 3.0： 1 , the particle size dropped from 673 nm to 348 nm, and the surface resistivity of PEDOT/LS rose to 87.2 kΩ/ sq from 1.9 kΩ/sq. Also,the PEDOT/LS film became smoother. The coating made by PEDOT/LS could make the surface resistance of a sheet glass decreased to 107Ω/sq from 1012 Ω/sq. Keywords Conductive polymer, Poly（3,4-ethlenedioxythiophene） , Lignosulfonic acid