Synthesis of carvedilol–organotin complexes and their effects on reducing photodegradation of poly(Vinyl chloride)

Omar G. Mousa, Gamal A. El-Hiti, Mohammed A. Baashen, Muna Bufaroosha, Ahmed Ahmed, Ahmed A. Ahmed, Dina S. Ahmed, Emad Yousif

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

Poly(vinyl chloride) (PVC) undergoes photodegradation induced by ultraviolet (UV) irradiation; therefore, for outdoor applications, its photostability should be enhanced through the use of additives. Several carvedilol tin complexes were synthesized, characterized and mixed with PVC to produce thin films. These films were irradiated at 25 C with a UV light (λ = 313 nm) for up to 300 h. The reduction in weight and changes in chemical structure and surface morphology of the PVC films were monitored. The films containing synthesized complexes showed less undesirable changes than the pure PVC film. Organotin with a high content of aromatics was particularly efficient in inhibiting photodegradation of PVC. The carvedilol tin complexes both absorbed UV light and scavenged radicals, hydrochloride, and peroxides and, therefore, photostabilized PVC.

Original languageEnglish
Article number500
Pages (from-to)1-16
Number of pages16
JournalPolymers
Volume13
Issue number4
DOIs
Publication statusPublished - Feb 2 2021

Keywords

  • Carvedilol–tin complexes
  • Functional group indices
  • Photostabilizers
  • Poly(vinyl chloride)
  • Surface morphology
  • Weight loss

ASJC Scopus subject areas

  • Chemistry(all)
  • Polymers and Plastics

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