| Title |
New photostabilizers for polystyrene based on 2,3-dihydro-(5-mercapto-1,3,4-oxadiazol-2-yl)-phenyl-2-(substituted)-1,3,4-oxazepine- 4,7-dione compounds
|
|---|---|
| Published in |
SpringerPlus, March 2013
|
| DOI | 10.1186/2193-1801-2-104 |
| Pubmed ID | |
| Authors |
Emad Yousif, Ayad Hameed, Nadia Salih, Jumat Salimon, Bashar Mudhaffar Abdullah |
| Abstract |
The photostabilization of polystyrene (PS) films by 2,3-dihydro-(5-mercapto-1,3,4-oxadiazol-2-yl)-phenyl-2-(substituted)-1,3,4-oxazepine-4,7-dione 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 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 (Φcs) 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 (I > II > III > IV). According to the experimental results obtained, several mechanisms were suggested depending on the structure of the additive like UV absorption, peroxide decomposer and radical scavenger. |
Mendeley readers
The data shown below were compiled from readership statistics for 23 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 23 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Ph. D. Student | 7 | 30% |
| Professor | 3 | 13% |
| Student > Bachelor | 3 | 13% |
| Student > Master | 2 | 9% |
| Researcher | 1 | 4% |
| Other | 0 | 0% |
| Unknown | 7 | 30% |
| Readers by discipline | Count | As % |
|---|---|---|
| Chemistry | 8 | 35% |
| Medicine and Dentistry | 3 | 13% |
| Engineering | 2 | 9% |
| Biochemistry, Genetics and Molecular Biology | 1 | 4% |
| Environmental Science | 1 | 4% |
| Other | 2 | 9% |
| Unknown | 6 | 26% |
Attention Score in Context
This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 12 March 2013.
All research outputs
#20,185,720
of 22,701,287 outputs
Outputs from SpringerPlus
#1,461
of 1,852 outputs
Outputs of similar age
#171,494
of 195,527 outputs
Outputs of similar age from SpringerPlus
#65
of 130 outputs
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