Small, porous, polyacrylate beads

Details Small, porous, polyacrylate beads Small, porous, polyacrylate beads

C - Chemistry, Metallurgy

08

F

252/31, 402/448,

C08F 220/10 (2006.01) C08F 20/62 (2006.01) C08J 3/24 (2006.01) C08J 5/20 (2006.01) C08J 9/00 (2006.01) G01N 33/543 (2006.01)

Patent

CA 1063298

ABSTRACT OF THE DISCLOSURE Generally uniformly-shaped, porous, spherical beads are prepared by the co-polymerization of an acrylic monomer and a cross-linking agent in the presence of 0.05% to 5% by weight of a water-soluble polymer stabilizer such as polyethylene oxide. Cross-linking proceeds at high temperature above about 50°C or at a lower temperature with irradiation. Beads of generally uniform shape and even size distribution having diameters of less than about 2 microns are formed. The beads are useful as adsorbents in chromatography and as markers for studies of cell surface receptors.

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