Synthesis of new Phosphorus dendrimer with 4,4′-sulfonyldianiline at the core has been accomplished involving simple condensation reactions using 3-hydroxy benzaldehyde, POCl3, hydroquinone, PSCl3 and 1,4-butyne diol. The final compound was a macromolecule Schiff’s base possessing 2 imine bonds 8 acetylenic bonds and 8 OH groups at the periphery. The structures of all dendrons were confirmed by IR, NMR (1H, 13C and 31P) E.S.I Mass and CHN analysis. The surface morphological characteristics of the final dendrimer were understood by scanning electronic microscopic study (SEM). The thermal stability of the final dendrimer was studied by TGA/DTA analysis.
