The preparation of sulfonated-poly(amideimide)/polypyrrole conducting composite and their physical properties

A conducting composite of poly(amideimide)/polypyrrole was prepared. A sulfonate group was introduced into the structure of poly(amideimide) (PAI) in order to enhance the coulombic interaction between each phase of composite. The effect of ionic group in sulfonated PAI was monitored by mechanical and thermal properties measurement. The presence of coloumbic interaction was indirectly monitored by the examination of morphology, mechanical properties, dopant of composite materials. In the preparation of a conducting polymer composite, the effect of matrix, oxidants/solvent system, and reaction time on the conductivity was examined. As a result, acetonitrile/methanol (90/10) was the best solvent to polymerize pyrrole, and the conductivity was reached to 7x10(-2)S/cm with the incorporation of 2 wt.% of polypyrrole into the matrix.