The polymer coated silica packings C or D with methylmethacrylate(MMA) or MMA-ethylene dimethacrylate(EDMA) monome r were prepared.

• 采用甲基丙烯酸甲酯(MMA)或MMA-亚乙基二甲基丙烯酸酯(EDMA)在硅胶表面聚合的方法，制备生成了新型高分子覆盖型硅胶填料C或D。