Fabrication and performances of microencapsulated paraffin composites with polymethylmethacrylate shell based on ultraviolet irradiation-initiated

► Microencapsulated paraffin with PMMA shell was synthesized via self-assembly. ► Microcapsules with excellent properties can be prepared by UV initiated method. ► The microencapsulation ratio is as high as 66 wt.%. ► Thermal properties are as high as comparable with microcapsules in the literature.