Abstract: By using dibutyltin(DBT) as the template molecule, chitosan as the functional monomer and glutaraldehyde as the cross-linking monomer, dibutyltin molecularly imprinted polymers(DBT-MIPs) were synthesized by the molecular imprinting technology. In this paper, the structure of DBT-MIPs was characterized with scanning electronic microscope, and the synthesis conditions of DBT-MIPs, the adsorption properties and selective recognition of DBT-MIPs for DBT were also studied. The experimental results show that DBT-MIPs has a high adsorption capacity and good selective recognition for DBT, and the maximum adsorption capacity of DBT-MIPs is 178.6 μg/g.

Key words: Molecular imprinting polymer, Dibutyltin, Chitosan, Adsorption, Selective recognition