FINE HOLLOW PARTICLE WITH HIGH-DENSITY POLYMER BRUSH SHELL, PROCESS FOR PRODUCING THE SAME, AND APPLICATION OF FINE HOLLOW PARTICLE WITH HIGH-DENSITY POLYMER BRUSH SHELL

摘要

A method of hollowing fine composite particles each comprising a fine particle and high-density graft chains bonded to the surface thereof, without impairing such properties of the existing high-density polymer particles that they have a narrow particle diameter distribution and excellent dispersion stability; and fine hollow particles obtained by the method which each comprises a high-density polymer brush layer surrounding a hollow part. In the method, fine composite particles each comprising a fine particle and high-density graft chains bonded to the surface thereof are treated to dissolve away the fine particles only to thereby make the composite particles hollow. The fine hollow particles obtained by the method each comprises a high-density polymer brush layer surrounding a hollow part.