Impact of Ultraviolet Radiation on the Aging Properties of PVC Films Doped by Tin(IV) Complexes
DOI:
https://doi.org/10.21123/bsj.2024.10430Keywords:
Ibuprofen tin complexes, optical microscope, PVC photostability, SEM, surface morphology.Abstract
Using 1H-, 13C-, and 119Sn-nuclear magnetic resonance (NMR) spectroscopies in addition to Fourier transform infrared spectroscopy (FTIR) for structural identification, we synthesized and studied three tin complexes of Ibuprofen in this study. To improve poly(vinyl chloride) (PVC)'s photo-stability, the produced complexes were mixed one at a time. FTIR techniques were employed to evaluate their effectiveness, and the results indicated the formation of new groups inside the polymer structure following exposure to ultraviolet radiation. We also investigated the weight loss of the polymer under irradiation and calculated the average molecular weight by comparing the viscosity before and after exposure. Additionally, a variety of methods were used to investigate the surface morphology of PVC before and after radiation. After irradiation, PVC treated with Ibuprofen tin complexes showed less cracks and spots and a smoother surface than untreated PVC, according to optical and scanning electron microscopy (SEM) data. The modified polymers showed increased resistance to photodegradation and had lower roughness factor, weight reduction, surface damages, and small fragments generated compared to the blank PVC. This shows that the Ibuprofen tin compounds that were produced may work extremely well as photo-stabilizers for PVC. Complex 1 performed better than the other stabilizers, which can be due to its large conjugation system.
Received 13/12/2023
Revised 15/03/2024
Accepted 17/03/2024
Published Online First 20/07/2024
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