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An amphiphilic graft copolymer comprising poly(ethylene oxide) (PEG) grafts was synthesised and characterised. It was used to stabilise the emulsion polymerisation of St or BuA. The effectiveness of this PEG-containing graft copolymer in stabilising St/BuA emulsion polymerisation was studied. Finally, stable dispersions of polystyrene microspheres were used as templates, and polystyrene microspheres were coated with Fe 3 O 4 by in situ reaction of Fe 3 + and Fe 2 + in the presence of OH − . No additional treatments were needed in the process.
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Guo et al. (2008) studied this question.
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