Mesoporous molecular sieves (MMS ) have been used in many fields such as catalysis

absorption

separation and sensor along with optical

electrical and magnetic science

due to their uniform and order channel

large specific surface area and adjustable pore size.Recently

a lot of polymerizations were carried out in the channel of MMS

taking the advantage of their empty channels as the microreactor. The latest 20 years progress of the free radical polymerizations in the channel of MMS

including the regular free radical polymerization and active free radical polymerization were reviewed. The properties of the polymer and polymer/MMS composite were discussed.The polymerization mechanism and application need further investigated .