Facile Process for Synthesis of Cu@Iron(Ⅲ) Oxide Composites Using Amphiphilic Graft Copolymer as Template

摘要

The Cu@Iron(Ⅲ) oxide composites were prepared by facile process using amphiphilic graft copolymer PVC-g-POEM as template.The graft copolymer PVC-g-POEM is consisted of poly(vinyl chloride) (PVC) main chain and poly(oxyethylene methacrylate) (POEM) side chain, which was synthesized via atom transfer radical polymerization (ATRP).In the PVC-g-POEM solution, Cu nanoparticles were dispersed followed by adding Iron (m)ethoxide with HCl.The sol-gel mixtures were calcinated at 450 °C to remove PVC-g-POEM template.The Cu nanoparticles are hydrophobic for having interaction with PVC region of PVC-g-POEM, while Iron(Ⅲ) ethoxide is hydrophilic precursor.It has selective interaction with hydrophilic region of POEM and dispersed well in acidic medium.The Cu@lron(Ⅲ) oxide composites were investigated by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), energy dispersive X-ray (EDX).