Abstract

Methyl α-cyanoacrylate has been polymerized at 60°C with dioxan as diluent, benzoyl peroxide as initiator and propane sultone to suppress anionic polymerization. Peroxide doubly labelled with carbon-14 and hydrogen-3 was used so that the relative numbers of benzoyloxy and phenyl end-groups could be determined. The monomer is comparatively unreactive towards the benzoyloxy radical so that initiation is largely by addition of phenyl radicals to molecules of monomer.

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