Fabrication of one-dimensional Fe3O4/P(GMA-DVB) nanochains by magnetic-field-induced precipitation polymerization

► 1D Fe3O4/P(GMA-DVB) nanochains were synthesized by MFI precipitation polymerization. ► The length of peapod-like nanochains can be controlled by magnetic field intensity. ► The thickness of polymer shell can be tuned by the amount of monomers. ► These nanochains can be oriented and aligned along the direction of magnetic field.