The research of microreactor in the field of polymerization reactions is booming due to its excellent heat and mass transfer performance. Compared with the conventional tank reactor

microreactor technology can regulate the polymer molecular weight distribution and improve the polymerization rate better

as well as control the polymer molecular structures and product morphologies. In this short review

the research progress of microreactor technology in coordination polymerization

ring-opening polymerization and photoinduced controlled radical polymerization are summarized

and the scale-up of the microreactor polymerization technology is briefly introduced. Finally

the development trend of the microreactor technology in polymerization is prospected.