Preparation of graft acrylic copolymers with a heterophase structure by latex-suspension polymerization

Polymerization of MMA in presence of a graft latex copolymer of butylacrylate(70% by weight) and MMA (30% by weight) has been investigated. The conditions in which particles of the emulsion-suspension copolymer form are defined. Electron microscopy and DTA have established that the copolymer particl...

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Bibliographic Details
Published in:Polymer science USSR 1990, Vol.32 (6), p.1069-1074
Main Authors: Nikolayeva, T.V., Kulikova, A.Ye, Vishnevskaya, I.N., Razinskaya, I.N., Gutkovich, A.D., Yermolayeva, V.L.
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:Polymerization of MMA in presence of a graft latex copolymer of butylacrylate(70% by weight) and MMA (30% by weight) has been investigated. The conditions in which particles of the emulsion-suspension copolymer form are defined. Electron microscopy and DTA have established that the copolymer particles have a heterophase structure. An equation is proposed for calculating the size of the dispersion drops in the system NMA-latex-water. Tests of the emulsion-suspension copolymer have been run with a maximum content of the latex copolymer (21% by weight) in the polymer-monomer composite. The impact strength of the material obtained was 10–12 kj/m 2.
ISSN:0032-3950
1878-268X
DOI:10.1016/0032-3950(90)90158-3