TY - JOUR ID - TI - SYNTHESIS AND PHOTOCHEMICAL STUDY OF POLY(VINYL CHLORIDE) - 1,3,4-OXADIAZOLE AND 1,3,4-THIADIAZOLE AU - Emaad T. Bakir AU - Ayad S. Hameed AU - Emad A. Yousif PY - 2007 VL - 10 IS - 1 SP - 7 EP - 12 JO - Al-Nahrain Journal of Science مجلة النهرين للعلوم SN - 26635453 26635461 AB - Poly(vinyl chloride) (PVC) has been reacted with 2-amino-5-(phenyl)-1,3,4-thiadiazole(LI), 2-amino-5-(p-nitro phenyl)-1,3,4-thiadiazole(LII), 2-mercapto-5-phenyl 1,3,4-oxadiazole(LIII) and 2-mercapto-5-(p-hydroxy phenyl) 1,3,4-oxadiazole(LIV) in THF to form the modified PVC , which has been characterized by spectroscopic methods. The photostabilization of PVC-L films compounds was investigated, the photostabilization activity of these compounds were determined by monitoring the carbonyl and polyene indices with irradiation time.All results obtained show that the rate of photodegradation of PVC-L films, 30 micrometer in thickness following the trends: PVC> PVC-LIII> PVC-LIV> PVC-LI > PVC-LIIAccording to the experimental results obtained, mechanism were suggested depending on the structure of the PVC-L compounds.

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