Simulation of Heterogeneous: Free Radical Polymerization Reactions
This note is concerned with modeling the radical grafting of styrene-acrylonytrile onto ethylene-propylene ethylydennorbornene copolymer (EP-ENB) initiated by benzoyl peroxide in benzene/n-heptane solution. Indications stemming from previous work on similar reactions [19.1,2,3] suggest that the mechanism might be heterophasic and that polymer segregation might be responsable for a particular decreasing trend observed in the grafting efficiency curve. This possibility is analyzed in detail by a more complete model which takes into account both physical effects related to phase separation and also phase volume changes during the reaction.
KeywordsGraft Copolymer Benzoyl Peroxide Polymer Phase Radical Grafting Heterogeneous Mechanism
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