SYNTHESIS AND CHARACTERIZATION OF A NOVEL HETEROCYCLIC POLY(SCHIFF BASE SULFIDE) POLYMER - NUCLEOPHILIC DISPLACEMENT POLYMERIZATION OF N,N'-BIS(P-CHLOROBENZYLIDINE)-2,6-DIAMINOPYRIDINE WITH SODIUM SULFIDE

Novel synthesis of a new poly(Schiff base sulfide) (PSBS) polymer by n ucleophilic displacement polymerization of N,N'-bis(p-chloro-benzylidi ne)-2,6-diaminopyridine with sodium sulfide was carried out. The resul ting polymer was soluble in some polar aprotic sol-vents having inhere nt viscosity of 9.01 dl/g in Dimethyl sulfoxide (DMSO) at 30 degrees C . The monomer and the polymer were characterized by elemental analysis , IR and (HNMR)-H-1 spectroscopy. The temperature of 10% wt loss under nitrogen and glass transition tem-perature (T-g) of the polymer were found out to be 380 degrees C and 74.6 degrees C, respectively. The se micrystalline nature of polymer was evidenced from its X-ray diffracti on study.