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聚乙炔是一种典型的“导电高分子”,可望成为太阳能电池与特种化学电源的新的电极材料。自从白川等人用Ti(OBu)_4-AIEt_3作为催化剂使乙炔聚合成膜以来,国内外又有许多人用不同方法制备了聚乙炔,但是,至今尚未看到采用电化学技术制备聚乙炔薄膜的报道。我们用电化学技术在金属电极上成功地制备了附着良好且厚度可控的聚乙炔膜。采用电化学方法制备聚乙炔不仅操作简便,聚合过程可由电极电流的波形与溶液组成加以控制,而且还可从电化学角度来探讨聚合的影响因素和聚合的反应机理。
Polyacetylene is a typical “conductive polymer”, is expected to become a new solar cell and specialty chemical power electrode materials. Since Shirakawa et al. Have used Ti (OBu) 4-AIEt_3 as a catalyst to polymerize acetylene into films, many people at home and abroad have also prepared polyacetylenes by different methods. However, up to now, there has not yet been found the use of electrochemical techniques for the preparation of polyacetylene films Reported. We electrochemically fabricated a well-adhered, controlled-thickness polyacetylene film on a metal electrode. The preparation of polyacetylene by electrochemical method is not only easy to operate, but also can be controlled by the waveform of the electrode current and the composition of the solution. Moreover, the influencing factors of polymerization and the reaction mechanism of polymerization can also be discussed from the electrochemical point of view.