FTIR, Weight, and Surface Morphology of Poly(vinyl chloride) Doped with Tin Complexes Containing Aromatic and Heterocyclic Moieties

Polymers

卷:13

Emad Yousif¹  Anaheed A. Yaseen²  Emaad T. B. Al-Tikrity²  Muna Bufaroosha³  Dina S. Ahmed⁴  Gamal A. El-Hiti⁵  Benson M. Kariuki⁶ 

[1] Department of Chemistry, College of Science, Al-Nahrain University, Baghdad 64021, Iraq;

[2] Department of Chemistry, College of Science, Tikrit University, Tikrit 34001, Iraq;

[3] Department of Chemistry, College of Science, United Arab Emirates University, P.O. Box 15551, Al-Ain 1818, United Arab Emirates;

[4] Department of Medical Instrumentation Engineering, Al-Mansour University College, Baghdad 64021, Iraq;

[5] Department of Optometry, College of Applied Medical Sciences, King Saud University, P.O. Box 10219, Riyadh 11433, Saudi Arabia;

[6] School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, UK;

关键词: trimethoprim–tin complexes;    poly(vinyl chloride);    roughness factor;    photodegradation;    photo-oxidation;    weight loss;   

DOI  :  10.3390/polym13193264

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown