A DIELECTRIC STUDY OF THE PHOTODEGRADATION OF POLY(VINYL CHLORIDE) INAIR

Authors
ELSHAFEE E SAAD GR
Citation
E. Elshafee et Gr. Saad, A DIELECTRIC STUDY OF THE PHOTODEGRADATION OF POLY(VINYL CHLORIDE) INAIR, Polymer degradation and stability, 43(3), 1994, pp. 315-318
Citations number
12
Categorie Soggetti
Polymer Sciences
Journal title
Polymer degradation and stability → ACNP
ISSN journal
01413910
Volume
43
Issue
3
Year of publication
1994
Pages
315 - 318
Database
ISI
SICI code
0141-3910(1994)43:3<315:ADSOTP>2.0.ZU;2-#
Abstract
The dielectric absorption caused by dipolar relaxation of poly(vinyl c hloride) photolytically degraded in air, using ultraviolet radiation, was studied on samples in the form of cast thin films. It was found th at with the progress of photodegradation over a period of 10 h at 35 /- 2 degrees C, the change in the magnitude of the dielectric paramete rs epsilon(m)(')', epsilon(0)-epsilon(infinity), Delta H-epsilon(0): a nd alpha can be practically represented as a three-staged process.