scholarly journals Stabilizing Effect of Metal Carboxylates of Balanites aegyptiaca Seed Oil (BSO) on Poly(vinyl chloride)

2013 ◽  
Vol 3 (2) ◽  
Author(s):  
Olujinmi M Folarin ◽  
Ighodalo C Eromosele ◽  
Catherine O Eromosele
Keyword(s):  
Vinyl Chloride ◽  
Seed Oil ◽  
Balanites Aegyptiaca ◽  
Metal Carboxylates ◽  
Poly Vinyl Chloride ◽  
Stabilizing Effect

scholarly journals Tin Complexes of 4-(Benzylideneamino)benzenesulfonamide: Synthesis, Structure Elucidation and Their Efficiency as PVC Photostabilizers

Polymers ◽  
2021 ◽  
Vol 13 (15) ◽  
pp. 2434
Author(s):  
Hassan Ghani ◽  
Emad Yousif ◽  
Dina S. Ahmed ◽  
Benson M. Kariuki ◽  
Gamal A. El-Hiti
Keyword(s):  
Vinyl Chloride ◽  
Structure Elucidation ◽  
Poly Vinyl Chloride ◽  
Polymeric Chains ◽  
Process Decomposition ◽  
Stabilizing Effect ◽  
Surface Alteration ◽  
Tin Complexes ◽  
High Yields ◽  
Harsh Conditions

Poly(vinyl chloride) (PVC) suffers from photo-xidation and photodegradation when exposed to harsh conditions. Application of PVC thus relies on the development of ever more efficient photostabilizers. The current research reports the synthesis of new complexes of tin and their assessment as poly(vinyl chloride) photostabilizers. The three new complexes were obtained in high yields from reaction of 4-(benzylideneamino)benzenesulfonamide and tin chlorides. Their structures were elucidated using different tools. The complexes were mixed with poly(vinyl chloride) at a very low concentration and thin films were made from the blends. The effectiveness of the tin complexes as photostabilizers has been established using a variety of methods. The new tin complexes led to a decrease in weight loss, formation of small residues, molecular weight depression, and surface alteration of poly(vinyl chloride) after irradiation. The additives act by absorption of ultraviolet light, removal the active chlorine produced through a dehydrochlorination process, decomposition of peroxides, and coordination with the polymeric chains. The triphenyltin complex showed the greatest stabilizing effect against PVC photodegradation as a result of its high aromaticity.

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

Polymers ◽  
2021 ◽  
Vol 13 (19) ◽  
pp. 3264
Author(s):  
Anaheed A. Yaseen ◽  
Emad Yousif ◽  
Emaad T. B. Al-Tikrity ◽  
Gamal A. El-Hiti ◽  
Benson M. Kariuki ◽  
...  
Keyword(s):  
Thin Films ◽  
Surface Morphology ◽  
Vinyl Chloride ◽  
Photo Oxidation ◽  
Poly Vinyl Chloride ◽  
Stabilizing Effect ◽  
Tin Complexes ◽  
The One ◽  
Harsh Conditions

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.

Vernonia anthelminticawilld. Seed oil and salts of vernolic acid as stabilizers for plasticized poly (Vinyl chloride)

1962 ◽  
Vol 39 (5) ◽  
pp. 266-268 ◽  
Author(s):  
George R. Riser ◽  
James J. Hunter ◽  
Jesse S. Ard ◽  
Lee P. Witnauer
Keyword(s):  
Vinyl Chloride ◽  
Seed Oil ◽  
Vernolic Acid ◽  
Poly Vinyl Chloride
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