Photopolymerizable polymer micelle, method of producing the same, and ink composition containing photopolymerizable polymer micelle

A method of producing a photopolymerizable polymer micelle:

• the method comprising
• a first process of producing a solution in which a block copolymer is dissolved in water, the block copolymer having a hydrophilic block segment and a hydrophobic block segment and having a number average molecular weight exceeding 20000, and the hydrophobic block segment at least partially having a radically polymerizable group;
• a second process of forming a mixed solution as a result of adding a hydrophobic photopolymerization initiator to the solution and then being mixed;
• and
• a third process of forming a micelle as a result of further adding water to the mixed solution for emulsification, the micelle being formed by the block copolymer and encapsulating the hydrophobic photopolymerization initiator.