Layered double hydroxides containing silicate anions have been prepared using either a coprecipitation method or an anionic exchange reaction. The polymerization of the intercalated anions under moderate thermal treatment has been studied by PXRD, FTIR, and solid-state NMR. Grafting processes and layer condensation have been obtained leading to the preparation of new nanocomposite materials with improved physicochemical properties.
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Depège et al. (1996) studied this question.
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