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The reactivities of α-methylstilbene and αβ-dimethylstilbene towards the benzoyloxy radical

✍ Scribed by C.A. Barson; J.C. Bevington; S.W. Breuer; T.N. Huckerby

Publisher
Elsevier Science
Year
1989
Tongue
English
Weight
231 KB
Volume
25
Category
Article
ISSN
0014-3057

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✦ Synopsis

The reactivitles of the E isomers of ~-methylstilbene (l,2-diphenylpropene) and ~@ -dimethylstilbene (2,3-diphenylbut-2-ene) towards the benzoyloxy radical have been compared by procedures involving the analyses of the end-groups in polymers of methyl methacrylate, prepared using benzoyl peroxide as initiator in the presence of one of the stilbene-like compounds. Introduction of the methyl groups into stilbene causes marked reduction in reactivity towards the benzoyloxy radical; the results can be explained in terms of steric effects.

📜 SIMILAR VOLUMES

Radical polymerizations involving esters
Radical polymerizations involving esters of vinyl alcohol—I Reactivities of monomers towards the benzoyloxy radical
✍ J.C. Bevington; M. Johnson 📂 Article 📅 1968 🏛 Elsevier Science 🌐 English ⚖ 142 KB

l\*C-benzoyl peroxide has been used at 60 ° to initiate polymerizations of vinyl formate, propionate, butyrate, benzoate and phenyl acetate at various concentrations in benzene. The relative numbers of benzoyloxy and phenyl end-groups in the various polymers have been determined; these numbers have