Method for preparing nonspherical, raspberry-shaped or hollow polymer microspheres through one-pot dispersion polymerization

The invention provides a method for preparing nonspherical, raspberry-shaped or hollow polymer microspheres through one-pot dispersion polymerization, and belongs to the technical field of dispersion polymerization. The method comprises the steps of stirring monomers styrene St and sodium styrenesulfonate NaSS and an initiator azodiisobutyronitrile AIBN, and dissolving the mixture in the mixed solution of an organic solvent and water to form a reaction solution; increasing the temperature of the reaction solution to the range from 75 to 80 DEG C and reacting for a certain of time; next, dropwise adding a cross-linking agent or the cross-linking and other reaction reagents to the reaction system, and further reacting for a while to obtain nonspherical, raspberry-shaped or hollow polymer microspheres. According to the invention, a method for directly preparing different types (nonspherical, raspberry-shaped or hollow) of polymer microspheres based on conventional dispersion polymerization and by controlling the cross-linking reaction process and adjusting reaction parameters is established.