| abstract |
Various methods of preparing non-aqueous dispersions of photosensitive polymeric microparticles are described, comprising: (a) preparing one or more aqueous dispersions of polymerizable components, at least one photosensitive material in the polymerizable components, wherein the polymerizable component comprises at least one hydrophilic functional group and/or at least one hydrophobic functional group; (b) subjecting the dispersion of (a) to conditions sufficient to form microparticles; (c) subjecting the polymerizable component to at least Partially polymerized; (d) combining the dispersion with an organic continuous phase comprising an organic solvent; (e) removing water from the dispersion such that the final water content of the non-aqueous dispersion is less than 30% by weight; wherein e) in d ) before or after; and (f) reacting any acid functional group on the surface of the microparticle with at least one epoxy functional group, at least one thiocarbonylthio functional group, at least one alkoxyamine functional group, or at least one halogenated Reactive material reactions of biofunctional groups. |