Polyaniline intercalation in alpha-Sn(HPO4)(2).H2O

In this work we report the preparation of a inorganic-organic nanocomposite , obtained by the in situ oxidative polymerization of aniline inside the la yers of alpha-Sn(HPO4)(2 .)H2O (alpha-SnP). Two approaches were used to obt ain the alpha-SnP/polyaniline nanocomposite. Firstly, hydrogen atoms of alp ha-SnP were exchanged with Fe3+ cation to promote aniline polymerization. S econdly aniline was intercalated in alpha-SnP and polymerization was perfor med by (NH4)(2)S2O8 solution. Both resulting material leads to formation of polyaniline in its conducting form, the emeraldine salt. The characterizat ion results suggest the formation of linear polymer chains between the alph a-SnP layers.