Dispersion polymerization of 4‐vinylpyridine was performed by using polystyrene‐block‐polybutadiene as stabilizer in a mixture of N,N‐dimethylformamide (DMF) and toluene to produce polymer particles. The weight ratio of the solvents affects the particle size and dispersity. In the range of DMF content from 5 to 20 wt.‐%, uniform particles of a diameter of ca. 1 μm were obtained. The present system was expanded to the preparation of monodisperse particles of poly[(4‐vinylpyridine)‐co‐(methacrylic acid)].
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Takahashi et al. (1997) studied this question.
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