Synthesis of Magnetic Molecularly Imprinted Polymer forFood Color by Surface Modification of Fe3O4

Magnetic molecularly imprinted polymers (MMIPs) have become a hotspot these days, owing to the dual functions of target recognition and magnetic separation. In this research, magnetite Fe3O4 nanoparticles (NPs) were modified, in aqueous solution, and then used as a precursor in synthesis of magnetic molecularly imprinted polymer for a food color dye. Firstly, Fe3O4 NPs was coated by silica, and then theparticles were successfully modified by 3-aminopropyltriethoxysilane (APTES). The surface polymerization was then carried out for preparation of MMIP. Using a novel, time saving and easy method all in aqueous solution makes this process green and unique among all modification methods. The resulting particles were characterized by FTIR and TGA techniques.

کلیدواژه ها:

Surface modification ، Magnetic molecularly imprinted polymer ، Tartrazine ، Stöberprocess ، APTES