The crosslinking microbeads PGMA with controllable size were synthesized by suspension polymerization of glycidyl methacrylate(GMA) and ethylene glycol dimethylacrylate(EGDMA).The chemical structure and morphology of PGMA were characterized with FT-IR spectrum and SEM respectively.The effects of various factors

such as disperser PVA weight percentage(wt%)

agitating rate

the ratio of oil phase to water phase

the weight percentage(wt%) of EGDMA and NaCl

influence law of sphericity and diameter of the microbeads were examined.The experimental results show that the sphericity of crosslinking microsbeads PGMA is excellent and various factors above-mentioned can all influence the particle diameter.In order to prepare PGMA microsbeads with the diameter about 100 μm

the optimal condition is achieved.