Special features of macromolecule formation in the copolymerization of fluoromonomers initiated by β-oxyethyl- tert-butyl peroxide

Chain transfer and chain termination reactions with the participation of primary and growing macroradicals in the copolymerization of tetrafluoroethylenes with vinyl fluoride and ethylene under the action of β-oxyethyl- t-butyl peroxide are studied with the aid of radioctive indicators. It is shown...

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Bibliographic Details
Published in:Polymer science USSR 1990, Vol.32 (12), p.2487-2493
Main Authors: Loginova, N.N, Madorskaya, L.Ya, Agapitov, A.P, Samoilov, V.M, Navrotskii, V.A, Podlesskaya, N.K, Ivanchev, S.S
Format: Article
Language:English
Subjects:
Applied sciences
Copolymerization
Exact sciences and technology
Organic polymers
Physicochemistry of polymers
Preparation, kinetics, thermodynamics, mechanism and catalysts
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Summary:Chain transfer and chain termination reactions with the participation of primary and growing macroradicals in the copolymerization of tetrafluoroethylenes with vinyl fluoride and ethylene under the action of β-oxyethyl- t-butyl peroxide are studied with the aid of radioctive indicators. It is shown that branching in the formed copolymers depends on their composition and structure, and especially on the content and mutual arrangement of the methylene and difluoromethylene groups. On the basis of data on the products from the decomposition of β-oxyethyl- t-butyl peroxide under copolymerization conditions and the ration of the end groups of different structure in the copolymers, a scheme is proposed for the most probable reactions with participation of radicals formed on peroxide decay.
ISSN:0032-3950
1878-268X
DOI:10.1016/0032-3950(90)90424-5