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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2021
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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) |
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topic |
poly(vinyl chloride) synthesis 4-methoxybenzoic acid-tin complexes irradiation photodegradation peroxide quenchers Organic chemistry QD241-441 |
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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 |
work_keys_str_mv |
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