The effect of fullerene (C 60 ) on the radical polymerization of methyl methacrylate (MMA) in benzene was studied kinetically and by means of ESR, where dimethyl 2,2Π-azobis(isobutyrate) (MAIB) was used as initiator. The polymerization rate (R p ) and the molecular weight of resulting poly(MMA) decr
Radical polymerization of methyl methacrylate in the presence of magnesium bromide as the Lewis acid
β Scribed by Akikazu Matsumoto; Shoji Nakamura
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 130 KB
- Volume
- 74
- Category
- Article
- ISSN
- 0021-8995
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β¦ Synopsis
We carried out the radical polymerization of methyl methacrylate (MMA) at 0 -80Β°C in the presence of magnesium bromide. The polymerization rate and the molecular weight of the resulting polymers increased according to the amount of the added magnesium bromide as the Lewis acid. It was revealed that the microtacticity of the polymer depended on the amount of magnesium bromide. The effects of the solid surface of magnesium bromide, which is partly soluble in the polymerization systems, were also investigated. The results obtained in this work were compared with the results reported for the polymerization systems in the presence of the other Lewis acids.
π SIMILAR VOLUMES
## Abstract The specific features of freeβradical polymerization of methyl methacrylate in the presence of a new initiating system, benzoyl peroxideβ__N,N__βdimethylβ__N__β(methylferrocenyl)amine, are studied. Mutual influence of ferrocenylβ and amine groups on kinetic parameters of polymerization