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用分散聚合法制备粒径约为3 μm的聚苯乙烯种子微球,再通过种子溶胀法及萃取得到苯乙烯-二乙烯苯多孔共聚微球,使用扫描电镜证实其多孔形貌,讨论了成孔机理和致孔剂甲苯对孔结构形成的影响.“,”The seeded micro-spheres of polystyrene(about 3 μm) were prepared by dispersion polymerization, and porous styrene-divinybenzene copolymer micro-spheres were prepared by extraction after polymerization. The particles of multi-hollow structure were characterized by SEM photograph with detailed discussions made on the mechanism of porous formation and the effect of toluene on porous structure.