Synthesis Studies on Paramagnetic Polystyrene Latex Particles
Radical polymerization in emulsion and in dispersion was applied to incorporate colloidal paramagnetic material into polystyrene latex particles. In emulsion, freshly precipitated magnetite (FeO · Fe2O3 = Fe3O4) with a diameter of approx. 10–20 nm was stabilized by different emulsifier systems including commercial ionic and nonionic stabilizers, surface-active initiators (polyethylene glycol [PEG] modified azo-initiators) and polymerizable emulsifiers (sodium-sulfopropyl alkylmaleates).
KeywordsRadical Polymerization Polymerizable Emulsifier Latex Particle Magnetite Content Hydroxypropyl Cellulose
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