Reaction and stabilizing mechanism of the cross-type macromonomers in the dispersion polymerization of styrene

Polystyrene particles using the cross-type (C-VUM) and linear-type (L-VUM) macromonomer were synthesized in the dispersion polymerization. Some of the L-VUMs are suggested to exist on the particle surface as a loop-type. Whereas, the reaction and stabilizing mechanism of C-PS is dominated by the geometric structure of the C-VUMs.