CARBOXYLATED POLYPROPYLENE COMPOSITE CATION EXCHANGE RESIN
羧化聚丙烯复合离子交换树脂

The carboxylated polypropylene composite cation exchange resin is obtained by heterogeneous graft copolymerization of a mixture of acrylic acid and methacrylic acid onto the particles of polypropylene. Each of the branched chains is linked together with the tertiary carbon atom of polypropylene through primary valence bond, but with no cros-slinking between them. They are therefore almost completely extended and rotate freely in ionic solution and thus confer good exchange and chelating adsorption properties on the resin.