A series of porous crosslinked acrylic acid copolymer beads was prepared directly by suspension polymerization of acrylic acid in the presence of 1,2 dichloroethane, toluene or heptane as the inert diluents and diviny...A series of porous crosslinked acrylic acid copolymer beads was prepared directly by suspension polymerization of acrylic acid in the presence of 1,2 dichloroethane, toluene or heptane as the inert diluents and divinylbenzene and triallyl isocyanurate as crosslinking agents. A 45% aqueous CaCl 2 solution containing 0 2% hydroxyethyl cellulose was used as the water phase. The copoly merization gave a yield more than 90% and copolymers with ion exchange capacity of 12 mmol/g were obtained. The effects of synthesis conditions,including the ratio of monomer to diluent, reaction temperture, on the resin properties were examined.展开更多
文摘A series of porous crosslinked acrylic acid copolymer beads was prepared directly by suspension polymerization of acrylic acid in the presence of 1,2 dichloroethane, toluene or heptane as the inert diluents and divinylbenzene and triallyl isocyanurate as crosslinking agents. A 45% aqueous CaCl 2 solution containing 0 2% hydroxyethyl cellulose was used as the water phase. The copoly merization gave a yield more than 90% and copolymers with ion exchange capacity of 12 mmol/g were obtained. The effects of synthesis conditions,including the ratio of monomer to diluent, reaction temperture, on the resin properties were examined.
