Unexpected Effects of Seed Polymer on the Porous Structures of Poly(methyl methacrylate-ethylene glycol dimethacrylate) Particles

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Abstract
Size monodispersed poly(methyl methacrylate-ethylene glycol dimethacrylate) packing materials were prepared by a multi-step swelling and polymerization method with cyclohexanol or toluene as porogenic solvent. When toluene was applied as a porogen, the seed polymer severely affected the porous structure, while no effect was observed with cyclohexanol compared chromatographically with those prepared by the corresponding suspension polymerization methods.