Design the magnetic microencapsulated phase change materials with poly(MMA-MAA) @ n-octadecane modified by FeO.

Magnetic microencapsulated phase change materials (magnetic MicroPCMs) are hotly researched for their dual-functions with phase change and magnetic properties, which provided the new applications in fields of maneuverable phase change materials and infrared electromagnetic dual shield. A series of magnetic MicroPCMs samples are synthesized by polymerization and coprecipitation method and the chemical composition contained poly(MMA-MAA) @ n-octadecane modified by FeO. In addition, the characterizations exhibit the excellent magnetic and phase change properties. The magnetic MicroPCMs samples present 20 emu·g saturation magnetization with still high enthalpy of 132 J·g, which fully illustrates that the magnetic MicroPCMs fulfill both application on thermal energy storage and magnetic control.