2,4,6-Tribromophenyl methacrylate was terpolymerized with styrene and acrylonitrile in aqueous emulsion and dimethylformamide solution. Experimental terpolymerization data agreed well with values calculated from the Alfrey-Goldfinger equation. The relationship between monomer feed and terpolymer compositions is presented on a triangular coordinate graph. The lines of unique composition for each monomer and the lines of binary azeotropic composition for monomer pairs were established for both systems. No true azeotropic composition could be determined, but a “pseudo-azeotropic” region was established. The experimental terpolymerization data agreed well with the theoretical values over a wide range of monomer composition up to high conversions. The influence of 2,4,6-tribromophenyl methacrylate on the thermal stability and flammability behavior of the terpolymers is described.
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Janović et al. (1985) studied this question.
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