| abstract |
The present invention reacts a reactive compound having an X- [Y] n reactive group with a secondary compound NS-ZM to form a substituted reactive intermediate [Y] a -X- (NS-ZM) b ; A method of modifying a particle comprising reacting the particle with a substituted reactive intermediate [Y] a -X- (NS-ZM) b to attach the substituted reactive intermediate to the surface of the particle to form surface modified particles. will be. The particles may comprise one or more of dye particles, inorganic pigment particles and additives or combinations thereof. X may be a sulfonyl, phosphoryl or 1,3,5-triazinyl group. Y may be a halogen leaving group. N may be a nucleophilic group. S may be an organic group. ZM may be an ionizable end group. In addition, n is an integer of 1 to 3, b is an integer of 1 to 3, a = n-b. When n is equal to or greater than b, and b is 2 or 3, each NS-ZM may be the same or different. |