Novel synthesis with an atomized microemulsion technique and characterization of nano-calcium carbonate (CaCO3)/poly(methyl methacrylate) core-shell nanoparticles

► Nano-CaCO3/PMMA CSNPs were synthesized by atomized microemulsion polymerization process. ► Polymer chains were anchored onto the surface of nano-CaCO3 through use of a coupling agent, TEVS. ► Encapsulation of nano-CaCO3 by PMMA was confirmed by transmission electron microscopy. ► Inclusion of nano-CaCO3/PMMA core-shell particles in PP matrix resulted in reinforcement.