PREPARATION METHOD FOR DIBLOCK COPOLYMER NANOPARTICLES VIA PRECIPITATION METHOD

摘要

PURPOSE: A method for preparing diblock copolymer nanoparticles is provided to produce even diblock copolymer nanoparticles with a simple process and mass production. CONSTITUTION: A method for preparing diblock copolymer nanoparticles comprises the steps of: dissolving an A-B diblock copolymer satisfying the inequality 1: ¦δA-δB¦>=3 and the inequality 2: δA <= 19 in a common solvent satisfying the inequality 3: δA < δcommon solvent < δB; and churning and dropping a non-solvent satisfying the inequality 4: δnon-solvent -δA >= 3 in the A-B diblock copolymer solution. In the inequality 1, δ represents the solubility parameter (unit: MPa^0.5) of the A block and B block of the A-B diblock copolymer composed of an A block and a B block.