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AssigneeShowa Denko K.K.
InventorsKeisuke Mano, Kuniaki Shimbo
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A particulate hydrophobic polymer produced by reacting (A) a particulate crosslinked polymer having a hydroxyl group with (B) a crosslinkable epoxy compound, hydrolyzing the epoxy bonds, and then reacting the obtained compound having a hydroxyl group with (C) an epoxy compound having from 6 to 40 carbon atoms in total, a production process therefor, a column for reversed-phase liquid chromatography, and an analysis method using the column. By using the particulate hydrophobic polymer of the present invention having a remarkably high acid/alkali resistance, a sharp chromatogram for polycyclic aromatic compounds is obtainable with the swelling and shrinkage of the particulate polymer itself reduced and without reducing the column efficiency among various solvents even when the eluent in the column is variously exchanged.
A particulate hydrophobic polymer produced by reacting (A) a particulate crosslinked polymer having hydroxyl groups with (B) a crosslinkable epoxy compound containing two or more oxirane rings, hydrolyzing the oxirane rings, and then reacting the obtained compound having hydroxyl groups with (C) an epoxy compound having from 6 to 40 carbon atoms in total, wherein the reaction between the particulate crosslinked polymer (A) having hydroxyl groups and the epoxy compound containing two or more oxirane rings is performed in the presence of a Lewis acid in a low polar solvent.
A production process for a particulate hydrophobic polymer, comprising reacting (A) a particulate crosslinked polymer having hydroxyl groups with (B) a crosslinkable epoxy compound containing two or more oxirane rings, hydrolyzing the oxirane rings and then reacting therewith (C) an epoxy compound having from 6 to 40 carbon atoms in total, wherein the reaction between the particulate crosslinked polymer (A) having hydroxyl groups and the epoxy compound containing two or more oxirane rings is performed in the presence of a Lewis acid in a low polar solvent.
Dependencies are inferred from the claim text.