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Study The Rate Constant of Photodecomposition of Polystyrene Films in Presence of Some 4- amino-5-(2-(6-methoxynaphthalen-2-yl)piperidino)-1,2,4-triazole-3-thion Complexes

Authors: Adil A. Awad --- Rehab A. M. Al-Hasani --- Emad A. Yousif
Journal: Al-Nahrain Journal of Science مجلة النهرين للعلوم ISSN: (print)26635453,(online)26635461 Year: 2016 Volume: 19 Issue: 1 Pages: 69-75
Publisher: Al-Nahrain University جامعة النهرين

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Abstract

The photostabilization of polystyrene (PS) films by (4-amino-5-(2-(6-methoxynaphthalen-2-yl)piperidino)-1,2,4-triazole-3-thion(L) compounds was investigated. PS films containing concentration of complexes 0.5% by weight were produced by the casting method from chloroform as a solvent. The photostabilization activities of these compounds were determined by monitoring the carbonyl and hydroxyl indices with irradiation time. The photostabilization of PS films by prepared complexes was investigated. The PS films containing concentration of complexes 0.5% by weight were produced by the casting method from (CHCl3) solvent. The photodegradation of the obtained films was investigated using UV-vis. spectra. The photostabilization activity of these compounds was determined by calculating the photodecomposition rate constant (kd) for the modified PS.

تم دارسة التثبيت الضوئي لرقائق متعدد الستارين بإستخدام ليكند جديد مع معقدتاتها من المركب 4 ]-امينو-5-(2(6-ميثوكسي نفثالين)-2-يل) بابريدون-4,2,1( ترايزول-3-ثايون[ تم انتاج الرقائق البلاستيكية التي تحتوي على 0.5% وزنآ من لليكند بطريقة الصب من مذيب كلوروفورم. وتم تحديد فعالية هذه المركبات في التثبيت الضوئي عن طريق حساب ثابت سرعة التحلل الضوئي للمثبت الضوئي (kd). وتعزى كفاءة هذه المركبات في التثبيت الضوئي لرقائق PS اكثر استقرارا من المثبت الضوئي.

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