Multifunctional Hybrid Nanocomposites with Magnetically Controlled Reversible Shape–Memory Effect

Magneto‐sensitivity and a thermo‐sensitive reversible shape–memory effect have been successfully integrated into a hybrid nanocomposite, resulting in a magnetically controlled actuator. The complex requirements for gaining this multifunctionality are fulfilled by combining netpoints on the molecular and nano level in a polyesterurethane network prepared from hydroxyl group decorated magnetic nanoparticles, crystallizable star‐shaped poly( ω ‐pentadecalactone) precursors, and a diisocyanate.