Synthesis and properties of polyamine†imides containing phenoxaphosphine units

Polyamine‐imides were synthesized by polycondensation reaction of bis‐N‐methyl‐olimides and diamines. The reactions were carried out in the aprotic polar solvent dimethylacetamide (DMAc) and polymers with inherent viscosities ranging between 0.36–0.75 dl/g were obtained. The polymers were degraded by conc. H2SO4. All the polymers were characterized by elemental analysis, IR‐ and 1H‐NMR spectroscopy, density, solubility, crystallinity, and thermal analysis. © 1987 Hüthig & Wepf Verlag, Basel