Study the Photo-degradation of poly styrene –co-butadiene in presence of Ni complex and TiO2

Abstract

Abstract In this work, the induced photo-degradation of poly styrene –co-butadiene films in the air has been studied (for 400 hr.) in the presence and absence of TiO2 dye and Ni complex, benzyl bis(benzoylhydrazone) Ni, as a photosensitizer by accelerated weathering tester, which are accomplished with the use of the Ultraviolet radiation at λ = 313nm, intensity of light of 3.490*10−5 Einstein/dm3.S at 45°Ctemperature. The rate of the photo-degradation has been followed with an increase in the polymers, hydroxyl and carbonyl absorbance of the use of the UV-visible and infrared (IR) spectra respectively and viscometer measurement. The addition of (0.1 wt %) of TiO2 dye and Ni complex to poly styrene –co-butadiene films (25μm thick) improved the photo-degradation of polymer films, and the photo-degradation with Ni complex higher than the photo-degradation of polymer with TiO2 dye where the degradation constant for Ni complex in polymer is higher than TiO2 dye.