PROCESS FOR PREPARING SURFACE FUNCTIONALIZED POLYMERIC AND POLYMERIC/SILICA HYBRID HOLLOW NANOSPHERES

摘要

The disclosure provides a process for preparing a surface functionalized polymeric or polymeric/silica hybrid hollow nanospheres comprising: providing a mixture comprising water, at least one non-reactive solvent, at least one acrylic or styrenic monomer; at least one functionalized acrylic or styrenic monomer; an initiator; at least one surfactant; and, optionally, a polymerizable silane if the polymeric/silica hybrid hollow particles are desired; and shearing the components of the mixture with high shear energy at an energy density of at least 10^6 J/m^3 to form a mini-emulsion; and heating to at least about 50°C, more typically about 50°C to about 90°C; and still more typically about 60°C to about 80°C to form, in one step, a surface functionalized polymeric or polymeric/silica hybrid hollow nanosphere.