New stabilizers for polystyrene based on 2-N-salicylidene-5-(substituted)-1, 3, 4-thiadiazole compounds
Joint Authors
Salih, Nadiyah Abd al-Karim
Yusuf, Imad
Salimon, Jumat
Source
Journal of Saudi Chemical Society
Issue
Vol. 16, Issue 3 (31 Jul. 2012), pp.299-306, 8 p.
Publisher
Publication Date
2012-07-31
Country of Publication
Saudi Arabia
No. of Pages
8
Main Subjects
Abstract 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.
American Psychological Association (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
Modern Language Association (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
American Medical Association (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
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 306
Record ID
BIM-351848