The quaternary ammonium salt of N,N′-bis(ferrocenylmethylene)diaminobutane and β-cyclodextrin labeled polyacrylamide have been prepared in this work. The composition and structures of the products have been determined and characterized by FTIR, ¹H NMR and elemental analysis. Furthermore, the host-guest interaction between the bi-guest molecule and β-cyclodextrin labeled polyacrylamide has been systematically studied by employing ¹H NMR, cyclovoltammetry, X-ray diffractometry, scanning electron microscopy techniques, etc. As that expected, the two ferrocene groups attached to the ends of the linker can act as guest to β-CD labeled on the backbone simultaneously, and form supermolecular 3-dimensional networks.

Key words: β-cyclodextrin, ferrocene, host-guest interaction, physical crosslinking