Institute for Color Science and Technology (ICST) Progress in Color, Colorants and Coatings 2008-2134 16 3 2023 07 01 Color Changes, AFM and SEM Study of PVC/triorganotin (IV) - Cephalexin Complexes Samples Via UV Radiation 283 294 81907 10.30509/pccc.2023.167075.1195 EN R. R. Arraq Department of Chemistry, College of Science, Babylon University, P.O. Box: 51002, Babil, Iraq A. G. Hadi Department of Chemistry, College of Science, Babylon University, P.O. Box: 51002, Babil, Iraq D. S. Ahmed Department of Medical Instrumentation Engineering, Al-Mansour University College, P.O. Box: 62021, Baghdad, Iraq M. H. Al-Mashhadani Department of Chemistry, College of Science, Al-Nahrain University, P.O. Box: 62021, Baghdad, Iraq H. Hashim Department of Physics, College of Science, Al-Nahrain University, P.O. Box: 62021, Baghdad, Iraq A. A. Ahmed Polymer Research Unit, College of Science, Al-Mustansiriyah University, P.O. Box: 62021, Baghdad, Iraq A. Husain Polymer Research Unit, College of Science, Al-Mustansiriyah University, P.O. Box: 62021, Baghdad, Iraq S. J. Baqir Medical Laboratories Techniques Department, Al-Mustaqbal University College, P.O. Box: 51002, Babil, Iraq A. H. Jawad Faculty of Applied Sciences, Universiti Teknologi MARA, P.O. Box: 40450, Shah Alam, Selangor, Malaysia E. A Yousif Department of Chemistry, College of Science, Al-Nahrain University, P.O. Box: 62021, Baghdad, Iraq Journal Article 2022 12 22 <em>Three organotin complexes were successfully produced in the presence of sodium hydroxide by the condensation reaction of cephalexin (ligand) and tri-organotin (IV) complexes. The complexes formed were given trigonal bipyramidal geometries based on spectrum measurements. These compounds were applied as additives (0.5 percent by weight) to reduce the photodegradation of polyvinyl chloride films (40 µm thickness) when exposed to ultraviolet light at a normal temperature (max = 313 at an intensity of light = 7.75 × 10^-7 ein dm^-3 S^-1). The weight changes of films before and after irradiation can be applied to investigate the effectiveness of organotin (IV) complexes as photo stabilizers. After irradiation, the morphology of poly(vinyl chloride) studied by the microscope, atomic force microscopy, and scanning electron microscope was shown to be less damaged in the films containing additives. These additives are effective UV absorbers, hydrogen chloride scavengers, and peroxide quenchers. </em> https://pccc.icrc.ac.ir/article_81907_4b568b3fab888a476762c70f545b85ad.pdf