Abstract
Monodisperse styrene-divinylbenzene gel beads in the range of 4.1–7.5 μm were prepared via a single-step swelling and polymerization method. The seed particles prepared by dispersion polymerization exhibited good absorption of the monomer phase. The resulting gel beads were evaluated as packing materials for gel permeation chromatographic columns. The pressure resistance of gel beads prepared with a volume ratio of diluent to monomers of unity was higher than 120 kg/cm2, and it decreased with the relative amount of diluent. The pore size tended to decrease with decrease in the swelling ratio of the seed polymer. The median pore size in a swollen state was controllable in the range 30–550 Å.
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