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- Title
Photostabilization, Thermodynamic and Theoretical Studies of polystyrene by some 2-amino pyridine.
- Authors
Ibraheem, Hiba; Al-Majedy, Yasameen; Issa, Ali Abdullah; Yousif, Emad
- Abstract
Polystyrene (PS) films are photostabilized by 2-amino pyridine derivative compounds. Investigations were conducted on compounds of (a-e). The casting method was used to create PS films with complexes present in concentrations of 0.5 % by weight, while chloroform served as the solvent. By keeping track of the carbonyl indices as the exposure duration progressed, the photostabilization activities of these compounds were discovered. Using chloroform as a solvent, the variations in PS's viscosity average molecular weight with exposure time were also monitored. The theoretical results of the PS modification compounds showed that the total energy values of PS-D are higher energy content than the rest of the studied models. The negative sign in the HOMO energy indicates stability, that is, it is less effective, where values are shown (HOMO) PS-C is the least effective (stable) and PS-E is the most effective (unstable). The thermodynamic theoretical outcome was shown that all reactions are endothermic and spontaneous, and the results of the (energy gap) values gave a range from 2.38453 eV for PS-C to 2.60277 eV. For PVCE, which proves that all PS modifications are conductive or semiconducting materials for electricity.
- Subjects
SEMICONDUCTORS; PYRIDINE; ENDOTHERMIC reactions; BAND gaps; MOLECULAR weights; POLYSTYRENE; CHLOROFORM
- Publication
Trends in Sciences, 2024, Vol 21, Issue 2, p1
- ISSN
2774-0226
- Publication type
Article
- DOI
10.48048/tis.2024.7374