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Nanocomposites based on the intercalation of chitosan, a cationic natural polymer, in Na + -montmorillonite are bidimensional nanostructured materials provided of anionic exchange sites (–NH 3+ X − ). This fact is due to the special arrangement of the biopolymer as a bilayer when the amount of intercalated chitosan is higher than the cationic exchange capacity (CEC) of...
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