Synthesis, Structure and Properties of Poly(arylene imino)s

A series of poly(arylene imino)s (PAI) with high molecular weights and small polydispersity indices have been synthesized by the condensation polymerization of different diiodobenzenes with aromatic primary diiminos via two different methods. Their structures were characterized by means of FT-IR, H-1 NMR spectroscopy and elemental analysis. DSC and TG measurements show that the polymers possess high glass transition temperatures (T-g>150 degrees C) and good thermal stability with high decomposition temperatures (T-D>400 degrees C). These novel polymers also exhibit good solubility in organic solvents.