Substituted Organotin Complexes of 4-Methoxybenzoic Acid for Reduction of Poly(vinyl Chloride) Photodegradation

Poly(vinyl chloride) suffers from degradation through oxidation and decomposition when exposed to radiation and high temperatures. Stabilizers are added to polymeric materials to inhibit their degradation and enable their use for a longer duration in harsh environments. The design of new additives t...

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Autores principales: Angham G. Hadi, Sadiq J. Baqir, Dina S. Ahmed, Gamal A. El-Hiti, Hassan Hashim, Ahmed Ahmed, Benson M. Kariuki, Emad Yousif
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spelling oai:doaj.org-article:efd716924558426987a1561d6580bac22021-11-25T18:48:39ZSubstituted Organotin Complexes of 4-Methoxybenzoic Acid for Reduction of Poly(vinyl Chloride) Photodegradation10.3390/polym132239462073-4360https://doaj.org/article/efd716924558426987a1561d6580bac22021-11-01T00:00:00Zhttps://www.mdpi.com/2073-4360/13/22/3946https://doaj.org/toc/2073-4360Poly(vinyl chloride) suffers from degradation through oxidation and decomposition when exposed to radiation and high temperatures. Stabilizers are added to polymeric materials to inhibit their degradation and enable their use for a longer duration in harsh environments. The design of new additives to stabilize poly(vinyl chloride) is therefore desirable. The current study includes the synthesis of new tin complexes of 4-methoxybenzoic acid and investigates their potential as photostabilizers for poly(vinyl chloride). The reaction of 4-methoxybenzoic acid and substituted tin chlorides gave the corresponding substituted tin complexes in good yields. The structures of the complexes were confirmed using analytical and spectroscopic methods. Poly(vinyl chloride) was doped with a small quantity (0.5%) of the tin complexes and homogenous thin films were made. The effects of the additives on the stability of the polymeric material on irradiation with ultraviolet light were assessed using different methods. Weight loss, production of small polymeric fragments, and drops in molecular weight were lower in the presence of the additives. The surface of poly(vinyl chloride), after irradiation, showed less damage in the films containing additives. The additives, in particular those containing aromatic (phenyl groups) substitutes, inhibited the photodegradation of polymeric films significantly. Such additives act as efficient ultraviolet absorbers, peroxide quenchers, and hydrogen chloride scavengers.Angham G. HadiSadiq J. BaqirDina S. AhmedGamal A. El-HitiHassan HashimAhmed AhmedBenson M. KariukiEmad YousifMDPI AGarticlepoly(vinyl chloride)synthesis4-methoxybenzoic acid-tin complexesirradiationphotodegradationperoxide quenchersOrganic chemistryQD241-441ENPolymers, Vol 13, Iss 3946, p 3946 (2021)
institution DOAJ
collection DOAJ
language EN
topic poly(vinyl chloride)
synthesis
4-methoxybenzoic acid-tin complexes
irradiation
photodegradation
peroxide quenchers
Organic chemistry
QD241-441
spellingShingle poly(vinyl chloride)
synthesis
4-methoxybenzoic acid-tin complexes
irradiation
photodegradation
peroxide quenchers
Organic chemistry
QD241-441
Angham G. Hadi
Sadiq J. Baqir
Dina S. Ahmed
Gamal A. El-Hiti
Hassan Hashim
Ahmed Ahmed
Benson M. Kariuki
Emad Yousif
Substituted Organotin Complexes of 4-Methoxybenzoic Acid for Reduction of Poly(vinyl Chloride) Photodegradation
description Poly(vinyl chloride) suffers from degradation through oxidation and decomposition when exposed to radiation and high temperatures. Stabilizers are added to polymeric materials to inhibit their degradation and enable their use for a longer duration in harsh environments. The design of new additives to stabilize poly(vinyl chloride) is therefore desirable. The current study includes the synthesis of new tin complexes of 4-methoxybenzoic acid and investigates their potential as photostabilizers for poly(vinyl chloride). The reaction of 4-methoxybenzoic acid and substituted tin chlorides gave the corresponding substituted tin complexes in good yields. The structures of the complexes were confirmed using analytical and spectroscopic methods. Poly(vinyl chloride) was doped with a small quantity (0.5%) of the tin complexes and homogenous thin films were made. The effects of the additives on the stability of the polymeric material on irradiation with ultraviolet light were assessed using different methods. Weight loss, production of small polymeric fragments, and drops in molecular weight were lower in the presence of the additives. The surface of poly(vinyl chloride), after irradiation, showed less damage in the films containing additives. The additives, in particular those containing aromatic (phenyl groups) substitutes, inhibited the photodegradation of polymeric films significantly. Such additives act as efficient ultraviolet absorbers, peroxide quenchers, and hydrogen chloride scavengers.
format article
author Angham G. Hadi
Sadiq J. Baqir
Dina S. Ahmed
Gamal A. El-Hiti
Hassan Hashim
Ahmed Ahmed
Benson M. Kariuki
Emad Yousif
author_facet Angham G. Hadi
Sadiq J. Baqir
Dina S. Ahmed
Gamal A. El-Hiti
Hassan Hashim
Ahmed Ahmed
Benson M. Kariuki
Emad Yousif
author_sort Angham G. Hadi
title Substituted Organotin Complexes of 4-Methoxybenzoic Acid for Reduction of Poly(vinyl Chloride) Photodegradation
title_short Substituted Organotin Complexes of 4-Methoxybenzoic Acid for Reduction of Poly(vinyl Chloride) Photodegradation
title_full Substituted Organotin Complexes of 4-Methoxybenzoic Acid for Reduction of Poly(vinyl Chloride) Photodegradation
title_fullStr Substituted Organotin Complexes of 4-Methoxybenzoic Acid for Reduction of Poly(vinyl Chloride) Photodegradation
title_full_unstemmed Substituted Organotin Complexes of 4-Methoxybenzoic Acid for Reduction of Poly(vinyl Chloride) Photodegradation
title_sort substituted organotin complexes of 4-methoxybenzoic acid for reduction of poly(vinyl chloride) photodegradation
publisher MDPI AG
publishDate 2021
url https://doaj.org/article/efd716924558426987a1561d6580bac2
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