Ion exchanger having hydroxyl groups bonded directly to backbone

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Ion-exchange polymer or process of preparing

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B01J 108, C08F 520

Patent

active

045433631

ABSTRACT:
An ion exchanger comprising a crosslinked copolymer and an ion exchange group, wherein an alcoholic hydroxyl group is bonded directly to the skeleton of a matrix of totally porous organic synthetic crosslinked copolymer. The ion exchanger has a predetermined hydroxyl group content, predetermined ion exchange group content, predetermined water regain value and predetermined specific surface area. The ion exchanger having a high mechanical strength and high chemical stability and not causing non-specific adsorption of bio-substances is useful as a high-speed liquid chromatography packing material and separating membrane, especially for bio-substances, such as protein, enzyme, peptide, amino acid, nucleotide or the like.

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