دراسة تحليلية وطيفية لقاعدتي شف اروماتية مشتقة من السالسالديهايد واسنادهما على رغوات البولي يورثان

Two Schiff bases are prepared from reaction of salicyaldehyde with benzidine (I) and o-phenylene diamine (II) and identified by infrared spectra through the appearance of C=N group at 1620cm-1 in addition to other bands that affirm the suggested structure of compounds and also identified by visible spectra and melting points and also their polyurethane foam are prepared and identified by infrared spectra. The use of polyurethane foam loaded with prepared two Schiff bases as Chelating resins have been carried out and their efficiency toward several ions Ni, Co and Cu in different times 1,2,3,6, and 24hr have been also studied. The two resins gave higher loaded capacity toward Ni ion than other ions and the loaded capacity of resin (I) toward ions was higher than of resin (II).