synthesis of a new copoly 1,3,4-oxadiazole from copoly imine with iodine and study of their biological activity

synthesis of a new series of poly (n-substituted-maleimide-co-2,5- substituted-1,3.4-oxadiazole) was carried out. the first step includes preparation of copoly imine by reaction of different aldehydes with copoly acid hydrazide (1-15). the second step indicated the reaction of copoly imine with iodine in the presence of k2co3 to give poly (nsubstituted- maleimide-co-2,5-substituted-1,3.4-oxadiazole). all prepared compounds were characterized by softening points, ft-ir, and some of them by 1h-nmr and tga, and then their biological application was studied and some of the physical properties.