Emad Yousif, Hadeel Adel, Raghad Haddad and Rahimi Yusop
Five coordination complexes of Ni(II), Cu(II), Zn(II), Cd(II) and Sn (II) metal with [2-thioacetic acid benzothiazole] were prepared in an alcoholic medium and used as photostabilizer for polyvinyl chloride against degradation. PVC was mixed with these complexes in a THF solvent to form a modified PVC in (5%) w/v thickness, which containing 0.5 % by weight concentration of complex were produced by casting method from solvent. The light of the wavelength 365 nm with intensity (6.0254 X 10 -9 Ein Dm -3 S -1 ) was used for irradiation of PVC films at room temperature. The photostabilization of PVC films compounds was investigated and the photostabilization action of these compounds was determined by calculating the photodecomposition rate constant (Kd ) for blank and modified PVC films.