Surface-modified inorganic nitride, composition, thermally conductive material, and device with thermally conductive layer

1. A surface-modified inorganic nitride comprising:

an inorganic nitride; and

a compound which is represented by General Formula (I) and is adsorbed onto a surface of the inorganic nitride,

in General Formula (I), X represents a hydroxyl group, a carboxylic acid group, a phosphonic acid group, a phosphoric acid group, a phosphinic acid group, a sulfonic acid group, a thiol group, or an amino group; Y represents a polycyclic aromatic hydrocarbon ring group containing three or more benzene rings; Z represents an aldehyde group, a succinimide group, an onium group, a halogenated alkyl group, a halogen atom, a nitrile group, an acryloyl group, a methacryloyl group, an oxetanyl group, a vinyl group, an alkynyl group, a maleimide group, or a group having a carbonate group; L 1 and L 2 each independently represent a single bond, any one selected from the group consisting of —O—, —CO—, —S—, —CS—, —NR 11 —, —N=N—, and a divalent hydrocarbon group, or a divalent linking group obtained by combining two or more selected from the group; R 11 represents a hydrogen atom or an alkyl group; and m and n each independently represent an integer of 1 or greater, and

in General Formula (I), in a case where a plurality of X's are present, the plurality of X's may be the same as or different from each other; in a case where a plurality of Z's are present, the plurality of Z's may be the same as or different from each other; in a case where a plurality of L 1 's are present, the plurality of L 1 's may be the same as or different from each other; in a case where a plurality of L 2 's are present, the plurality of L 2 's may be the same as or different from each other; and in a case where X represents an amino group, Z represents a group other than a halogen atom.

2. The surface-modified inorganic nitride according to claim 1 ,

wherein X is a hydroxyl group, a carboxylic acid group, a phosphonic acid group, a phosphoric acid group, a phosphinic acid group, a sulfonic acid group, or a thiol group.

3. The surface-modified inorganic nitride according to claim 2 ,

wherein the inorganic nitride is at least one kind of nitride selected from the group consisting of boron nitride and aluminum nitride.

4. The surface-modified inorganic nitride according to claim 1 ,

wherein Y is a pyrene ring group.

5. The surface-modified inorganic nitride according to claim 4 ,

wherein the inorganic nitride is at least one kind of nitride selected from the group consisting of boron nitride and aluminum nitride.

6. The surface-modified inorganic nitride according to claim 1 ,

wherein the inorganic nitride is at least one kind of nitride selected from the group consisting of boron nitride and aluminum nitride.

7. The surface-modified inorganic nitride according to claim 6 ,

wherein the inorganic nitride is boron nitride.

8. A composition comprising:

the surface-modified inorganic nitride according to claim 1 ; and

a polymerizable monomer.

9. The composition according to claim 8 ,

wherein the polymerizable monomer has a group selected from the group consisting of an acryloyl group, a methacryloyl group, an oxiranyl group, an oxetanyl group, and a vinyl group.

10. The composition according to claim 8 ,

wherein the polymerizable monomer or a cured substance thereof exhibits liquid crystallinity.

11. The composition according to claim 8 that is used for forming a thermally conductive material.

12. A thermally conductive material comprising the surface-modified inorganic nitride according to claim 1 .

13. The thermally conductive material according to claim 12 that is in the form of a sheet.

14. The thermally conductive material according to claim 12 that is used in a heat dissipation sheet.

15. A device with a thermally conductive layer, comprising:

a device; and

a thermally conductive layer which is disposed on the device and contains the thermally conductive material according to claim 12 .