Abstract
Abstract Polyamideimides (PAI) were prepared by the polycondensation reaction of the diacid chloride of N-(p-carboxy phenyl) trimellitimide and p, p′-di(amino phenyl) methane following three different techniques. The solution, thermal, chemical, and electrical properties of the polymer were studied. The polymer was found to be soluble in highly polar solvents. The solubility parameter of the polymer calculated from Small's group contributions agreed well with the experimental value. The polymer was found to be fairly thermostable and only 10% weight loss occurred at 360°C. X-ray diffraction study revealed that the polymer is amorphous. The electrical properties of the polymer at room temperature were also studied.
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