SURFACE-MODIFIED ZIRCONIA NANOCRYSTAL PARTICLE AND METHOD FOR PRODUCING SAME
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Abstract
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.
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Citations
24 Claims
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1-10. -10. (canceled)
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11. 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. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. A surface-modified zirconia nanocrystal particle comprising:
a zirconia nanocrystal particle having a surface; and organic sulfonyloxy groups modifying the surface of the zirconia nanocrystal particle. - View Dependent Claims (21, 22, 23, 24)
Specification