A Study on Conducting Polymers and Its Power Application

制备了具有高度共轭电子体系的导电聚合物，用于电力应用，如导体和二次电池。研究结果如下：1.通过化学法、电化学法和前驱体膜的热处理制备了聚噻吩、聚对苯撑乙烯及其衍生物聚3-烷基噻吩和聚2，5-二乙氧基对苯撑乙烯.这些导电聚合物的电子性质取决于其取代基的结构。这些发现允许设计具有低自放电速率和高稳定性的电极活性材料。这些导电聚合物的掺杂行为取决于制备方法。这种依赖性是从掺杂离子的扩散速率随导电聚合物形态的变化来解释的.研究发现，导电聚合物的一阶和高阶结构影响掺杂态（金属态）的稳定性.用化学气相沉积法在红外辐射下从含氧烃类化合物中获得石墨薄膜。所得石墨膜在其与FeCl_3和K.6的插层状态下显示出高达10^5 S/cm的金属电导率。高导电（掺杂）态的稳定性对实际应用导体是很重要的。

Conducting polymers having highly conjugated electron system were prepared for use in power application such as conductor and secondary battery. The Results were summarized as follows.1. Poly(thiophene), Poly(p-phenylenevinylene) and its derivatives such as poly(3-alkylthiophene) and poly(2,5-diethoxy-p-phenylenevinylene) were prepared by chemical method, electrochemical method and heat-treatment of precursor film.2. Electronic properties of these conducting polymers depended on structure of its substituent group. These findings allow to design a electrode active material having low self discharge rate and high stability.3. Doping behavior of these conducting polymers depended upon preparation method. Such the dependency is explained from term of change of diffusion rate of dopnat ion depending on morphorogy of the conducting polymers.4. It was found that the first and higher order structure of the conducting polymers affect stability of doped(metallic) state.5. Graphite films were obtained by CVD method under infla-red irradiation from oxygen-containing hydrocarbon compounds. The resulting graphite films showed metallic conductivity as high as 10^5 S/cm in its intercalated state with FeCl_3 and K.6.- It was also concluded that stabilization of highly conductive (doped) state is important to practical application as conductors.