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Vulcanization of butyl rubber by p ‐quinone dioxime dibenzoate
Author(s) -
Gan L. M.,
Chew C. H.
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.1979.070240206
Subject(s) - vulcanization , quinone , polymer chemistry , natural rubber , molecule , chemistry , materials science , organic chemistry
The maximum crosslink density for the dioxime‐butyl vulcanizate was obtained at equimolar quantity of the dioxime and red lead. The formation of each quinoid crosslink required about 1.25 molecule of p ‐quinone dioxime dibenzoate. The vulcanizates consisted mainly of the anil‐type crosslink. It was estimated that about 20% of the combined dinitro compounds was wasted in the form of the pendent groups. The vulcanization mechanisms are also discussed.