Composition for forming thermally conductive material, and thermally conductive material

A composition for forming a thermally conductive material, comprising:

• a compound represented by General Formula (1);
• a phenolic compound;
• and
• an inorganic substance,
• wherein the phenolic compound is a compound represented by General Formula (P1) or General Formula (P2), or a compound represented by any one of General Formulae (B01) to (B03) and having one or more phenolic hydroxyl groups, and
• wherein a content of the compound represented by General Formula (1) is 40.0% by mass or greater with respect to a total organic solids content,
• (X—Z1—)m-A-(—Z2—Y)n (1)
• in General Formula (1), m represents an integer of 3 or greater,
• n represents an integer of 0 or greater,
• X represents an epoxy group,
• Y represents a hydroxyl group,
• Z1 and Z2 each independently represents a single bond or an alkylene group having 1 to 7 carbon atoms,
• one or more —CH2—'s constituting the alkylene group may be substituted with —O—,
• A represents an (m+n)-valent aliphatic saturated hydrocarbon group,
• one or more —CH2—'s constituting the aliphatic saturated hydrocarbon group may be substituted with —O—,
• one or more —CH<'s constituting the aliphatic saturated hydrocarbon group may be substituted with —N<,
• in a case where there are a plurality of X's, the plurality of X's may be the same as or different from each other,
• in a case where there are a plurality of Y's, the plurality of Y's may be the same as or different from each other,
• in a case where there are a plurality of Z1's, the plurality of Z1's may be the same as or different from each other, and
• in a case where there are a plurality of Z2's, the plurality of Z2's may be the same as or different from each other and,
• in General Formula (P1), m1 represents an integer of 0 or greater,
• na and nc each independently represents an integer of 1 or greater,
• R1 and R6 each independently represents a hydrogen atom, a halogen atom, a carboxylic acid group, a boronic acid group, an aldehyde group, an alkyl group, an alkoxy group, or an alkoxycarbonyl group,
• R7 represents a hydrogen atom or a hydroxyl group,
• Lx1 represents a single bond, —C(R2)(R3)—, or —CO—, where R2 and R3 each independently represents a hydrogen atom or a substituent,
• Lx2 represents a single bond, —C(R4)(R5)—, or —CO—, where R4 and R5 each independently represents a hydrogen atom or a substituent,
• Ar1 and Ar2 each independently represents a benzene ring group or a naphthalene ring group,
• Qa represents a hydrogen atom, an alkyl group, a phenyl group, a halogen atom, a carboxylic acid group, a boronic acid group, an aldehyde group, an alkoxy group, or an alkoxycarbonyl group,
• in General Formula (P2), C represents a carbon atom which is a spiro atom,
• XS and YS each independently represents a divalent linking group having one or more phenolic hydroxyl groups, provided that both terminals of XS are each bonded to the same carbon atom C, both terminals of YS are each bonded to the same carbon atom C, the carbon atom C to which the both terminals of XS are bonded, and the carbon atom C to which the both terminals of YS are bonded are the same, and the compound represented by General Formula (P2) is a spiro compound having the carbon atom C as a spiro atom,
• XB-[-(L1B)mB-ZB]nB (B01)
• in General Formula (B01), mB represents an integer of 0 or greater, and in a case where mB is 0, ZB is directly bonded to XB, provided that a plurality of mB's may be the same as or different from each other,
• nB represents an integer 3 to 6,
• XB represents a benzene ring group or a heterocyclic group which may have a substituent,
• L1B represents an arylene group which may have a substituent, an ester group, an ether group, a thioester group, a thioether group, a carbonyl group, —NRN—, an azo group, or an unsaturated hydrocarbon group which may have a substituent, where RN represents a hydrogen atom or a substituent, provided that in a case where there are a plurality of L1B's, the plurality of L1B's may be the same as or different from each other,
• ZB represents an aromatic ring group which may have a substituent, provided that a plurality of ZB's may be the same as or different from each other,
• in General Formula (B02), E1 to E3 each independently represents a single bond, —NH—, or —NR—, where R represents a substituent, provided that in a case where there are a plurality of —NR—'s among E1 to E3, the plurality of R's may be the same as or different from each other,
• B1 to B3 each independently represents an aromatic ring group which may have a substituent and has 6 or more carbon atoms as ring member atoms,
• lb, mb, and nb each independently represents an integer of 0 or greater, provided that in a case where lb is 2 or greater, the plurality of X1's may be the same as or different from each other, and in a case where mb is 2 or greater, the plurality of X2's may be the same as or different from each other, and in a case where nb is 2 or greater, the plurality of X3's may be the same as or different from each other,
• X1 to X3 each independently represents a group represented by General Formula (B2R),
• in General Formula (B2R), * represents a position bonded to any one of B1 to B3,
• D1 represents a single bond or a divalent linking group,
• A1 represents an aromatic ring group which may have a substituent and has 6 or more carbon atoms as ring member atoms, or a cycloalkane ring group which may have a substituent and has 6 or more carbon atoms as ring member atoms,
• QB and Y1 each independently represents a specific functional group selected from the group consisting of an aldehyde group, a boronic acid group, a hydroxyl group, a monovalent group having an epoxy group, an amino group, a thiol group, a carboxylic acid group, a monovalent group having a carboxylic acid anhydride group, an isocyanate group, and a monovalent group having an oxetanyl group,
• p represents an integer of 0 or greater,
• q represents an integer of 0 to 2,
• in General Formula (B03), E1 to E3 each independently represents a single bond, —NH—, or —NR—, where R represents a substituent,
• g1 to g3 each independently represents an integer of 0 or 1,
• Z1a to Z1c, Z2a to Z2c, and Z3a to Z3c each independently represents a hydrogen atom or the group represented by General Formula (B2R), provided that a total of two or more among Z1a to Z1c, Z2a to Z2c, and Z3a to Z3c are the groups represented by General Formula (B2R).