Surface-modified zirconia nanocrystal particle and method for producing same

摘要

The invention provides a surface-modified zirconia nanocrystal particle, wherein the surface of the zirconia nanoparticle is modified by organic sulfonyloxy groups, and a method of producing a zirconia nanocrystal particle whose surface is modified by carbonyloxy groups, organic phosphoryloxy groups or aryloxy groups. This makes it possible a highly stable surface-modified zirconia nanocrystal particle having a solvent dispersibility by a simple method. Further, it is possible to the surface-modified zirconia nanocrystal particle of the invention is equipped with a surface modifier having a structure that can be easily substituted with a desired functional group according to use. Furthermore, it is possible to the method of producing the surface-modified zirconia nanocrystal particle which is capable of easily producing that.

主权项

1. A method of producing a zirconia nanocrystal particle of which surface is modified with residues of weaker acids than sulfonic acids, the method comprising:
reacting a surface-modified zirconia nanocrystal particle of which surface is surface-modified with organic sulfonyloxy groups with a salt constituted of the weaker acids and strong bases to substitute the organic sulfonyloxy groups with the residues of the weaker acids to thereby obtain the zirconia nanocrystal particle.