| abstract |
The invention discloses AIE polymer nanoparticle and its preparation and application as a colorant for ink jet printing ink. The AIE polymer nanoparticles are composed of AIE molecules and a polymer matrix; the AIE molecules are AIE molecules without polymerizable groups and/or AIE molecules with polymerizable groups; the AIE polymers Nanoparticles are prepared by the following method: preparing an aqueous emulsifier solution, then mixing AIE molecules with vinyl-containing monomers and co-stabilizers to form an oil phase solution, and pre-emulsification and ultrasonic emulsification to obtain a monomer mini-emulsion. In the droplet, AIE molecules are introduced into the polymer matrix by means of physical encapsulation and/or copolymerization through a radical polymerization reaction to prepare AIE polymer nanoparticles. The invention provides the application of the AIE polymer nanoparticle as a colorant for inkjet printing ink, and the printed pattern has the characteristics of high brightness, high resolution, ultraviolet response and the like. |