Title of article :
Photostability of PVC Films by using Safety Synthetic Biolubricant as Additives
Author/Authors :
Yousif, Emad Department of Chemistry - College of Science - Al-Nahrain University - Baghdad 64021, Iraq , Yusop, Rahimi M School of Chemical Sciences and Food Technology - Faculty of Science and Technology - Universiti Kebangsaan Malaysia - 43600 Bangi - Selangor, Malaysia , Ahmed, Dina S Department of Medical Instrumentation Engineering - Al-Mansour University College - Baghdad 64021, Iraq
Abstract :
Stabilization standards ofpoly(vinyl chloride)(PVC)films fundamentally depend on essentiallaws: solvation and "reverberation"stabilization. The photo-stabilization ofPVC films byepoxidizedoleic acid was investigated. Photo-stabilization activities were determined bymonitoring the carbonyl, polyene and hydroxyl indices with irradiation time.The changes inviscosity average molecular weight of PVC with irradiation time were also tracked usingtetrahydrofuran as a solvent. The quantum yield of the chain scission (Φcs) was evaluated andfound with range 4.53E10-8and 8.12E10-8. Postulated mechanisms were outlined depending onthe structure of the additive.
Keywords :
UV-light , photostabilizer , poly(vinyl chloride) , epoxidized oleic acid , carbonyl , polyene , hydroxyl , indices , irradiation time , viscosity , molecular weight , quantum yield , chain scission
Journal title :
Malaysian Journal of Chemistry
