The scope of this paper is to review peroxide curing of diene elastome
rs. At high dicumyl peroxide loading and high curing temperature, chan
ges in the crosslinking mechanisms were observed. Both Abstraction of
allylic hydrogen and addition to the double bond can act as mechanisms
of crosslinking. IR spectroscopy reveals a significant decrease in do
uble bonds, and a new relaxation at temperatures above the T-g of the
elastomers is present.