ISSN:
0268-2605
Keywords:
Organotin stabilizers
;
Dibutyltin
;
PVC
;
Polymers
;
Gamma irradiation
;
Degradation
;
Dealkylation
;
Chemistry
;
Organic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
Organotin stabilizers of the type Bu2SnX2 (X = SCH2CO2C8H17 or O2CCH=CHCO2C8H17) present in poly(vinyl chloride) (PVC) and subjected to varying doses of gamma irradiation in the range 1-200 kGy (0.1-20 Mrad) are shown to suffer degradation with dealkylation to form monobutyltin trichloride and tin(IV) chloride, which have been characterized by a subsequent alkylation procedure followed by gas chromatographic analysis. The extent of degradation of the stabilizers on prolonged gamma irradiation is much more severe than during thermal degradation leading to comparable blackening of the polymer.
Additional Material:
2 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/aoc.590010404
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