FTIR, weight, and surface morphology of poly(vinyl chloride) doped with tin complexes containing aromatic and heterocyclic moieties

Yaseen, Anaheed A., Yousif, Emad, Al-Tikrity, Emaad T. B., El-Hiti, Gamal A., Kariuki, Benson M. ORCID: https://orcid.org/0000-0002-8658-3897, Ahmed, Dina S. and Bufaroosha, Muna 2021. FTIR, weight, and surface morphology of poly(vinyl chloride) doped with tin complexes containing aromatic and heterocyclic moieties. Polymers 13 (19) , 3264. 10.3390/polym13193264

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Abstract

Poly(vinyl chloride) (PVC) is an important synthetic plastic that is produced in large quantities (millions of tons) annually. Additives to PVC are necessary to allow its use in many applications, particularly in harsh conditions. In regard to this, investigation of the synthesis of trimethoprim–tin complexes and their use as PVC additives is reported. Trimethoprim–tin complexes were obtained from the reaction of trimethoprim and tin chlorides using simple procedures. Trimethoprim–tin complexes (0.5% by weight) were added to PVC to produce homogenous mixtures and thin films were made. The effect of ultraviolet irradiation on the surface and properties of the PVC films was investigated. The level of both photodecomposition and photo-oxidation of PVC films containing trimethoprim–tin complexes was observed to be lower than for the blank film. The effectiveness of tin complexes as PVC photostabilizers reflects the aromaticity of the additives. The complex containing three phenyl groups attached to the tin cation showed the most stabilizing effect on PVC. The complex containing two phenyl groups was next, with the one containing butyl substituents resulting in the least stabilization of PVC. A number of mechanisms have been proposed to explain the role of the synthesized complexes in PVC photostabilization

Item Type:	Article
Date Type:	Published Online
Status:	Published
Schools:	Chemistry
Additional Information:	This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited
Publisher:	MDPI
ISSN:	2073-4360
Funders:	King Saud University, Riyadh, Saudi Arabia.
Date of First Compliant Deposit:	7 October 2021
Date of Acceptance:	23 September 2021
Last Modified:	02 May 2023 12:06
URI:	https://orca.cardiff.ac.uk/id/eprint/144729

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