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HUMIDITY SENSITIVITY OF VARIOUS COMPOSITES DERIVED FROM CONDUCTING AND INSULATING POLYMERS

机译：导电和绝缘聚合物衍生的各种复合材料的湿度敏感性

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Humidity sensitivity of conducting/insulating polymer composites has been studied. The composites were prepared with various conducting and insulating polymers. The conductivity of poly(o-phenylenediamine) /poly(vinyl alcohol)(PVA) was linearly related with the atmospheric humidity. Two types of water molecules were found to exist in these polymers. One is weakly bound to the composite and equilibriates with the atmospheric moisture, and the other is strongly bound to the composite at the PVA unit and stays there even in a dry state. These composites senses the humidity following the scheme that the protonic acid doped in the conducting polymer move reversibly between the conducting and insulating polymers in proportional to the environmental humidity. On the other hand, the conductivity of poly(o-toluidine)/ PVA showed non-linear dependence on humidity and a hysteresis in the measurements. These results are caused by lesser amount of strongly bound water molecules, which does not permit the protonic acid to move reversibly between the two polymers.
机译：已经研究了导电/绝缘聚合物复合材料的湿度敏感性。用各种导电和绝缘聚合物制备复合材料。聚（邻苯二胺）/聚乙烯醇（PVA）的电导率与大气湿度呈线性关系。发现这些聚合物中存在两种类型的水分子。一种牢固地结合到复合材料上并与大气中的水分保持平衡，另一种牢固地结合到PVA单元上的复合材料上，甚至在干燥状态下也保持在那里。这些复合物按照以下方案感测湿度，该方案是：掺杂在导电聚合物中的质子酸与环境湿度成比例地在导电和绝缘聚合物之间可逆地移动。另一方面，在测量中，聚（邻甲苯胺）/ PVA的电导率显示出对湿度和滞后性的非线性依赖性。这些结果是由较少量的强结合水分子引起的，这不允许质子酸在两种聚合物之间可逆地移动。

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