Reducing Environmental Pollutants by using Triorganotin(IV)-Tyrosine Complexes that Prolong the Life of the Polymers used in Outdoor Patios

Document Type : Original Research Paper

Authors

1 Department of Chemistry, College of Science, Babylon University, Babil, Iraq

2 Department of Chemistry, College of Science, Al-Nahrain University, Baghdad, Iraq.

3 Department of Chemistry, College of Science, Al-Nahrain University, Baghdad, Iraq

4 Department of Physics, College of Science, Al-Nahrain University, Baghdad, Iraq

5 Polymer Research Unit, College of Science, Mustansiriyah University, Baghdad, Iraq

6 School of Chemical Science and Food Technology, Faculty of Science and Technology, University Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia

7 Faculty of Applied Sciences, Universiti Teknologi MARA, Shah Alam 40450, Selangor, Malaysia

8 Department of Chemical and Petrochemical Engineering, College of Engineering and Architecture, University of Nizwa, Nizwa, Oman

9 Energy and Renewable Energies Technology Center, University of Technology, Baghdad 10001, Iraq

Abstract

When exposed to UV light at ambient temperature, three tri organotin (IV) complexes with tyrosine as a ligand (85–97% yields) were utilized as additives to prevent the photo-degradation of PVC films (40 μm thickness). The compounds were described using NMR (1H, 13C and 119Sn), IR, and elemental analysis. The compounds formed were assigned trigonal bipyramidal geometry depending on the spectrum data. Several Triorganotin (IV) tyrosine complexes were synthesized and mixed with polymers to form thin films (vinyl chloride). Up to 300 hours of UV light (wavelength: 313 nm) exposure was given to these films. A microscope, atomic force microscopy, and scanning electron microscopy were used to examine the surface morphology of the PVC films. Rapid UV-weathering was employed to determine weight loss and the production of certain functional groups, including carbonyl and polyene. Compared to pure PVC film, the films with manufactured complexes showed less undesired alterations. By absorbing UV light and scavenging peroxides, hydrochlorides and radicals. The polymer was photo stabilized by the triorganotin (IV)-tyrosine complexes (vinyl chloride). It was discovered that Ph3SnL has the fastest rate of PVC photostabilization.

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Main Subjects

References

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Pollution
Volume 9, Issue 4
October 2023
Pages 1501-1514

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