Photoresponsive compound
Provided is a compound that is fluidized by light irradiation and reversibly non-fluidized, and is not significantly colored. Provided is a photoresponsive compound represented by the following general formula (1), the photoresponsive compound being fluidized by light irradiation and reversibly non-fluidized: R 1 —Z 1 ═Z 2 —R 2 General formula (1) wherein Z 1 and Z 2 are N or CH, while Z 1 ≠Z 2 , R 1 contains an aromatic hydrocarbon structure, R 2 contains an aromatic heterocyclic structure, and a hydrogen atom is bonded to at least one carbon atom bonded adjacent to a carbon atom in the aromatic heterocyclic structure bonded to the Z 2 .
1. A photoresponsive compound represented by the following general formula (1), the photoresponsive compound being fluidized by light irradiation and reversibly non-fluidized:
R 1 —Z 1 ═Z 2 —R 2 General formula (1)
wherein Z 1 is N, and Z 2 is CH,
R 1 contains an aromatic hydrocarbon structure,
R 2 contains an aromatic heterocyclic structure,
a hydrogen atom is bonded to at least one carbon atom bonded adjacent to a carbon atom in the aromatic heterocyclic structure bonded to the Z 2 , and
R 2 is represented by the following formula:
wherein R c is a hydrogen atom, an alkyl group having 1 to 18 carbon atoms, or an alkoxy group having 1 to 18 carbon atoms.
2. The compound according to claim 1 , wherein the R 1 is a substituted or unsubstituted phenyl group, naphthyl group, anthracenyl group, phenanthrenyl group, pyrenyl group, or biphenyl group.
3. The compound according to claim 1 , wherein the R 1 has at least one substituent selected from the group consisting of a halogen group, a cyano group, a nitro group, an alkyl group having 1 to 18 carbon atoms, an alkoxy group having 1 to 18 carbon atoms, a dialkylamino group having 2 to 10 carbon atoms, an acyl group having 2 to 19 carbon atoms, and an alkoxycarbonyl group having 2 to 19 carbon atoms.
4. The compound according to claim 3 , wherein the R 1 has at least one substituent selected from the group consisting of an alkyl group having 1 to 18 carbon atoms, an alkoxy group having 1 to 18 carbon atoms, a dialkylamino group having 2 to 10 carbon atoms, an acyl group having 2 to 19 carbon atoms, and an alkoxycarbonyl group having 2 to 19 carbon atoms.
5. The compound according to claim 1 , wherein a wavelength of light in the light irradiation is 280 nm or more and 480 nm or less.
6. A toner comprising the compound according to claim 1 .
7. The toner according to claim 6 , further comprising a binder resin.
8. The toner according to claim 7 , wherein the binder resin contains at least one selected from the group consisting of styrene-acrylic resins and polyester resins.
9. An image forming method comprising:
forming a toner image formed of the toner according to claim 6 on a recording medium; and
irradiating the toner image with light to soften the toner image.
10. The image forming method according to claim 9 , wherein a wavelength of the light is 280 nm or more and 480 nm or less.
11. The image forming method according to claim 9 , further comprising pressing the toner image.
12. The image forming method according to claim 11 , further heating the toner image in the pressing.
13. The image forming method according to claim 9 , wherein, in the irradiating the toner image with light to soften the toner image, the toner image is heated together with light irradiation.
14. A photoresponsive adhesive comprising the compound according to claim 1 .
15. An optical switching material comprising the compound according to claim 1 .