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A study of PVC stabilization with epoxides using dynamic pH determinations
Author(s) -
GonzalezGonzalez V.
Publication year - 1979
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1979.070240801
Subject(s) - epoxide , activation energy , mole , chemistry , polymer chemistry , organic chemistry , catalysis
The activation energy ( E a ) for the dehydrochlorination of PVC and PVC stabilized with an epoxide was determined by a method involving dynamic pH measurements. The E a increase was 5 kcal/mole between unformulated PVC ( E a = 22.6 kcal/mole) and any of the other formulations ( E a = 27.7–28.6 kcal/mole). On the basis of this and data contained in the literature, research alternatives for the stabilization mechanism are proposed using model compounds.