ABSTRACT Polyaniline – Pr2O3 composites have been prepared by in situ polymerization technique. The prepared composites were characterized by XRD, FTIR and SEM. Further the DC and dielectric study was carried out in two probe method. From DC conductivity, it is found that the conductivity increases with increase in temperature and filler concentration. Dielectric and permittivity studies shows that the resistivity decreases with increase in applied field due to the dipole polarization. The AC conductivity increases with increase in Pr2O3 in polyaniline due to decrease in the bulk resistance by molecular moment of composites segments. Among all composites, 30 wt % of composites shows high conductivity of about 0.3 S/cm followed by other compositions were 40 and 50 wt % shows lowest conductivity due to blocking of charge carriers. Therefore, these composites can be used for different technological applications.

中文翻译：

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聚苯胺 – Pr2O3 复合材料的合成、表征和介电研究

摘要 聚苯胺-Pr2O3 复合材料已通过原位聚合技术制备。通过XRD、FTIR和SEM对制备的复合材料进行表征。进一步的直流和介电研究是在两个探针方法中进行的。从直流电导率发现，电导率随着温度和填料浓度的增加而增加。介电常数和介电常数研究表明，由于偶极极化，电阻率随着外加场的增加而降低。由于复合材料链段的分子矩导致体电阻降低，AC 电导率随着聚苯胺中 Pr2O3 的增加而增加。在所有复合材料中，30 重量％的复合材料显示出约 0.3 S/cm 的高电导率，其次是 40 和 50 重量％的其他组合物由于电荷载流子的阻挡而显示最低电导率。所以，