Synthesis and characterization of thermally stable polymers (polybenzimidazoles)

In this study, an alternative synthesis of polybenzimidazoles was performed with aromatic hydroxamoyl chloride. In contrast to the literature, polybenzimidazoles were obtained through the reaction of hydroxamoyl chlorides with 3,3'-diaminobenzidine or 1,2,4,5-tetraaminobenzene. The characterization of the polymers was performed with Fourier transform infrared, (1)H-NMR, elemental analysis, LC mass spectrometry, and differential thermogravimetry/thermogravimetric analysis. Finally, the adhesion, corrosion resistance, and conducting properties of the synthesized polymers were examined. (C) 2008 Wiley Periodicals, Inc.