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Perturbation of the photochemistry of poly(vinyl chloride) by a conventional aromatic plasticizer

✍ Scribed by Jean-Luc Gardette; Jean-Louis Philippart

Publisher
Elsevier Science
Year
1988
Tongue
English
Weight
699 KB
Volume
43
Category
Article
ISSN
1010-6030

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✦ Synopsis

Samples of poly(viny1 chloride) unplasticized or plasticized with di(octyl)phthalate were exposed to accelerated photo-aging. The presence of the plasticizer appeared to modify the behaviour of the polymer. Plasticized samples photocolourate more slowly than unplasticized ones. This effect is discussed in terms of a screening effect and an increased permeability to oxygen owing to the plasticizer, and of an increase in chain mobility owing to the reduction in the glass-transition temperature.

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