| abstract |
[PROBLEMS] Polymerization of a monomer desired as an arm and polymerization of a monomer constituting a polyfunctional core are carried out simultaneously from the respective monomers in the same reaction vessel (one pot), and a multi-branched star polymer is produced in one step. To provide a production method for polymerizing A vinyl monomer (1) having a functional group serving as a starting species for living radical polymerization, a vinyl monomer (2) that copolymerizes the monomer preferentially in a polymerization solvent, and an excess amount of another monomer The vinyl monomer (3) is charged into a reaction vessel at a time, and living radical polymerization is started by adding heat, ultraviolet rays, ultrasonic waves, or a metal complex. First, the vinyl monomer (1) and the vinyl monomer (2) are added. ) Forms a complex in the polymerization solvent and initiates copolymerization preferentially to form a copolymer which becomes the core of the star polymer, and then, with the copolymer being the core as the center, the vinyl monomer (3) A method for producing a star polymer, wherein the polymerization is started to form a plurality of arms of the star polymer. [Selection diagram] Fig. 1 |