New stabilizers for polystyrene based on 2-N-salicylidene-5-(substituted)-1, 3, 4-thiadiazole compounds
المؤلفون المشاركون
Salih, Nadiyah Abd al-Karim
Yusuf, Imad
Salimon, Jumat
المصدر
Journal of Saudi Chemical Society
العدد
المجلد 16، العدد 3 (31 يوليو/تموز 2012)، ص ص. 299-306، 8ص.
الناشر
تاريخ النشر
2012-07-31
دولة النشر
السعودية
عدد الصفحات
8
التخصصات الرئيسية
الملخص EN
The photostabilization of polystyrene (PS) films by 2-N-salicylidene-5-(substituted)- 1, 3, 4-thiadiazole compounds was investigated.
The PS films containing concentration of complexes 0.5% by weight were produced by the casting method from chloroform solvent.
The photostabilization activities of these compounds were determined by monitoring the carbonyl and hydroxyl indices with irradiation time.
The changes in viscosity average molecular weight of PS with irradiation time were also tracked (using benzene as a solvent).
The quantum yield of the chain scission (Ucs) of these complexes in PS films was evaluated and found to range between 3.31 • 10_6 and 7.89 • 10_6.
Results obtained showed that the rate of photostabilization of PS in the presence of the additive follows the trend: SN > SC > SB > SI > SP According to the experimental results obtained, several mechanisms were suggested depending on the structure of the additive.
Among UV absorption, peroxide decomposer and radical scavenger for photostabilizer additives mechanisms were suggested.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Yusuf, Imad& Salimon, Jumat& Salih, Nadiyah Abd al-Karim. 2012. New stabilizers for polystyrene based on 2-N-salicylidene-5-(substituted)-1, 3, 4-thiadiazole compounds. Journal of Saudi Chemical Society،Vol. 16, no. 3, pp.299-306.
https://search.emarefa.net/detail/BIM-351848
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Yusuf, Imad…[et al.]. New stabilizers for polystyrene based on 2-N-salicylidene-5-(substituted)-1, 3, 4-thiadiazole compounds. Journal of Saudi Chemical Society Vol. 16, no. 3 (Jul. 2012), pp.299-306.
https://search.emarefa.net/detail/BIM-351848
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Yusuf, Imad& Salimon, Jumat& Salih, Nadiyah Abd al-Karim. New stabilizers for polystyrene based on 2-N-salicylidene-5-(substituted)-1, 3, 4-thiadiazole compounds. Journal of Saudi Chemical Society. 2012. Vol. 16, no. 3, pp.299-306.
https://search.emarefa.net/detail/BIM-351848
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references : p. 306
رقم السجل
BIM-351848
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
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