scholarly journals Comparison of different photo-oxidation conditions of poly(vinyl chloride) for outdoor applications

2008 ◽  
Vol 27 (6) ◽  
pp. 743-751 ◽  
Author(s):  
L.E. Pimentel Real ◽  
A.M. Ferraria ◽  
A.M. Botelho do Rego
Keyword(s):  
Vinyl Chloride ◽  
Photo Oxidation ◽  
Poly Vinyl Chloride

Influence of orientation on the photo-oxidation of poly(vinyl chloride)

1990 ◽  
Vol 28 (1) ◽  
pp. 53-65 ◽  
Author(s):  
V. Bellenger ◽  
J. Verdu ◽  
G. Martínez ◽  
J. Millán
Keyword(s):  
Vinyl Chloride ◽  
Photo Oxidation ◽  
Poly Vinyl Chloride

scholarly journals Photostability Study of Some Modified Poly(vinyl chloride) Containing Pendant Schiff’s Bases

2016 ◽  
Vol 13 (2) ◽  
pp. 188-195
Author(s):  
Baghdad Science Journal
Keyword(s):  
Vinyl Chloride ◽  
Rate Constant ◽  
Degradation Rate ◽  
Schiff’S Bases ◽  
Photo Degradation ◽  
Photo Oxidation ◽  
Modified Polymers ◽  
Poly Vinyl Chloride ◽  
Schiff's Bases ◽  
Degradation Rate Constant

The polymers modified Poly(vinyl chloride) differ in their tendency to photo oxidation comparing with that unmodified. It has been studied Photostability for modified Poly(vinyl chloride) chains using Schiff’s bases derivative of (5-amino-1, 3, 4-thiadiazole-2-thiol) in a manner casting of plastic chips with thickness (40) in a solvent Tetrahydrofuran. It has been determined the effectiveness Photostability of these modified polymers through the photo degradation rate constant for photostabilizer (kd) for the modified Poly (vinyl chloride). Attributed efficiency of these Poly(vinyl chloride) chips in Photostability by replace the atom Cl Poly(vinyl chloride) chains ends more stable than light stabilizer.

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.

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