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Cation charge, swelling dependence

Cationically-charged microgel particles Precipitation polymerization of NIPAM or NIPMAM with a crosslinker (MBA) and AEMH 200-1000 nm Cationic surface charge. Swelling capacity dependent on MBA amount [12]... [Pg.174]

Certain crosslinked graft copolymers of polysaccharides are found to exhibit salt resistant swelling in different concentrations of salts. Swelling decreases with increase in salt concentration and is found to be cationic charge dependent. Depending upon the cations, swelling is found to follow the order Na > NH/> Mg"2> Ca" > Ba"2>Fe"3... [Pg.48]

When the dye is ion-exchanged on clays, it is concentrated in a relatively small volume around the clay particles. The size of the volume depends on the swelling characteristics of the clay and thus on such factors as (1) the size and the charge density of the clay particles (2) the type of exchangeable cation and (3) the ability of the dye to penetrate in the interlamellar space of the aggregates. [Pg.378]

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