Abstract
Benzoyl peroxide, labelled with carbon-14 and tritium, has been used to initiate polymerization of methyl methacrylate; the numbers of benzoate and phenyl end-groups have been compared. The presence of 1,3-diphenylpropene or 1,2-diphenylpropene at low concentration in the polymerizing system increases the proportion of benzoate end-groups because the additive is effective in capturing benzoyloxy radicals. The relative reactivities at 60°C of methyl methacrylate, 1,3-diphenylpropene and 1,2-diphenylpropene towards the benzoyloxy radical are approximately 1,8 and 28. Very high reactivity of 9-(2-phenylethenyl)-anthracene towards this radical has been confirmed.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
