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Abstract Polymer complexes have received a considerable attention in the last decade. Kinetics, elucidation of the structures, thermal stabilities, optical and electrical properties having been particular interest. The thesis entitled ”Physico-chemical Studies on Some Polymer Complexes” comprises four main Chapters. Chapter 1, focused on the synthesis and characterization of some polymers and polymer complexes. Also it included some researches about removing of metals ions using polymer complexes as adsorbents. Chapter 2, discussed the preparation of allyl rhodanine azodye and analytical techniques used for the characterization of formed polymer complexes .Also it contained the equipment used for the determination of the thermal and electrical properties of the ligands.Chapter 3, describes the synthesis of three organic ligands of 3-allyl -5-(4-derivative phenyl)diazenyl)-2-thioxothiazolidine-4-one Summary 138 (HLn). The ligands were characterized showing a good agreement with those yielded from elemental analysis, IR and 1H-NHR spectroscopy. The geometrical molecular structures of the ligands were optimized The geometrical molecular structures of the ligands were optimized theoretically by HF method with 3-21G basis set and the quantum chemical parameters were explored by using molecular orbital calculation. Proton-ligand dissociation constants for (HLn) ligands and their metal stability constants with Mn2+, Co2+, Ni2+ and Cu2+ in monomeric and polymeric forms were determined potentiometerically. The effect of temperature was discussed in details showing a significant effect and the corresponding thermodynamic parameter (ΔG, ΔH and ΔS) were obtained. An attempt has been made with molecular docking to investigate and predict the binding between azo compound with the receptor of prostate cancer 297k-Hormon and 3hh5-oxiderductase receptor of breast cancer to provide a brief insight to the inhibition applicability. Finally, the dissociation process is nonspontaneous, endothermic and entropically unfavorable. The formation of the metal polymer complexes has been found to be spontaneous, endothermic and entropically favorable. The presence of the azo group is an efficient inhibitor for prostate cancer 297k- Hormone and 3hb5-oxidoreductase receptor of breast cancer. Chapter 4, described the structure properties of 3-allyl-5- (phenyl)diazenyl)-2-thioxothiazolidne-4-one (APDT) ligand. X-ray diffraction pattern of APDT ligand showed many diffraction peaks confirms the formation of polycrystalline nature. The crystallographic |