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The reactions with initiating radicals of monomers having low ceiling temperatures: the case of alpha-methoxy styrene with the 2-cyano-2-propyl radical

✍ Scribed by K. Behari; J.C. Bevington; S.W. Breuer; T.N. Huckerby

Publisher: Elsevier Science
Year: 1988
Tongue: English
Weight: 165 KB
Volume: 24
Category: Article
ISSN: 0014-3057
DOI: 10.1016/0014-3057(88)90150-4

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✦ Synopsis

Azobis(isobutyronitrile)

and 2-cyano-2-propylazoformamide, both enriched with carbon-13, have been used to initiate copolymerizations of o<methoxystyrene (MOS) with methyl methacrylate. The copolymers have been examined by 13C-NMR so allowing study of the end-groups derived from the initiator. It has been found that MOS is quite reactive towards the 2-cyano-2-propyl radical at 60 ° and /O0°C; in the copolymers, there is a tendency for MOS units to be concentrated at sites adjacent to the initiator fragments.

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Free radical polymerisation studies of 4-substituted styrenes, 1. The reactions of 2-cyano-2-propyl radicals with styrene, 4-methoxystyrene and 4-methylstyrene

✍ Robert William Huxley Berry; Andrew John Ludlow; Robert John Mazza 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 671 KB

## Abstract Only a limited amount of work has been previously published concerning the free radical polymerisation of 4‐methoxystyrene and 4‐methylstyrene initiated by 2,2′‐azoisobutyronitrile (2,2′‐azobis(2‐methylpropiononitrile)) (AIBN). The present investigation was, therefore, undertaken to est