Colored composition, cured film, color filter, method for producing color filter, solid-state image sensor, and image display device
Provided are a colored composition which enables the formation of a pattern having excellent heat resistance and excellent solubility in solvents and has inhibited color migration; and a cured film, a color filter, a method for producing a color filter, a solid-state image sensor, and an image display device, each of which uses the colored composition. The colored composition includes a polymer anion having a repeating unit containing a weakly nucleophilic anionic structure, and a dye having a cationic structure, in which the weakly nucleophilic anionic structure represents an anionic structure produced by dissociating an organic acid having a lower pKa value than the pKa value of sulfuric acid.
1. A colored composition comprising:
a polymer anion having a repeating unit containing a weakly nucleophilic anionic structure; and
a cation having a dye structure,
wherein the polymer anion contains a repeating unit having an acid group and the weakly nucleophilic anionic structure represents an anionic structure produced by dissociating an organic acid having a lower pKa value than the pKa value of sulfuric acid.
2. The colored composition according to claim 1 , wherein the repeating unit containing a weakly nucleophilic anionic structure is represented by General Formula (1):
in which
in General Formula (1), Q represents the main chain of the repeating unit, L represents a single bond or a divalent linking group, and Z is an anionic structure represented by General Formula (2-1), an anionic structure represented by General Formula (2-2), or an anionic structure represented by the following General Formula (2-3);
*—Y 1 -A 1 General Formula (2-1)
in General Formula (2-1), * represents a binding site to L in General Formula (1), Y 1 represents a fluorinated alkylene group, and A 1 represents SO 3 − ;
*—Y 2 -(A 2 ) n General Formula (2-2)
in General Formula (2-2), * represents a binding site to L in General Formula (1), and Y 2 represents an anion including a boron atom, a carbon atom, a nitrogen atom, or a phosphorus atom;
in the case where Y 2 is a boron atom, n is 3, and A 2 's are each a halogen atom, a cyano group, an alkyl group containing at least one of a fluorine atom and a cyano group, or an aryl group containing at least one of a fluorine atom and a cyano group;
in the case where Y 2 is a carbon atom, n is 2, and A 2 's are each a halogen atom, a cyano group, an alkyl group containing at least one of a fluorine atom and a cyano group, an aryl group containing at least one of a fluorine atom and a cyano group, an alkylsulfonyl group which may contain at least one of a fluorine atom and a cyano group, or an arylsulfonyl group which may contain at least one of a fluorine atom and a cyano group, and two A 2 's may be bonded to each other to form a ring;
in the case where Y 2 is a nitrogen atom, n is 1, and A 2 's are each an alkyl group containing at least one of a fluorine atom and a cyano group, an aryl group containing at least one of a fluorine atom and a cyano group, an alkylsulfonyl group which may contain at least one of a fluorine atom and a cyano group, or an arylsulfonyl group which may contain at least one of a fluorine atom and a cyano group; and
in the case where Y 2 is a phosphorus atom, n is 1 or 3, and A 2 's are each an alkyl group containing at least one of a fluorine atom and a cyano group, an aryl group containing at least one of a fluorine atom and a cyano group, an alkylsulfonyl group which may contain at least one of a fluorine atom and a cyano group, or an arylsulfonyl group which may contain at least one of a fluorine atom and a cyano group); and
in General Formula (2-3), * represents a binding site to L in General Formula (1), and R's each represent a cyano group or a fluorinated alkyl group.
3. The colored composition according to claim 2 , wherein in the case where Z in General Formula (1) is represented by General Formula (2-1), L has a fluorinated alkylene group having 1 to 10 carbon atoms.
4. The colored composition according to claim 2 , wherein Z in General Formula (1) is an anionic structure represented by General Formula (2-1), or an anionic structure produced by dissociating at least one group selected from a fluorinated alkylsulfonimide group and a fluorinated alkylsulfonemethide group.
5. The colored composition according to claim 1 , wherein the cation having a dye structure has a polymerizable group.
6. The colored composition according to claim 1 , wherein the colored composition further comprises a polymerizable compound.
7. The colored composition according to claim 1 , wherein the colored composition further comprises a pigment other than the cation having a dye structure.
8. The colored composition according to claim 1 , wherein the colored composition further comprises a photopolymerization initiator.
9. The colored composition according to claim 8 , wherein the photopolymerization initiator is an oxime compound.
10. The colored composition according to claim 1 , wherein the cation having a dye structure has a dye structure selected from a dipyrromethene dye, a triarylmethane dye, a xanthene dye, a cyanine dye, and a squarylium dye.
11. The colored composition according to claim 1 , wherein the polymer anion having the repeating unit containing a weakly nucleophilic anionic structure and the cation having a dye structure form a dye multimer.
12. The colored composition according to claim 1 , which is used for formation of a colored layer of a color filter.
13. A cured film obtained by curing the colored composition according to claim 1 .
14. A color filter comprising the cured film according to claim 13 .
15. A solid-state image sensor comprising the color filter according to claim 14 .
16. An image display device comprising the color filter according to claim 14 .
17. A method for producing a color filter, comprising:
applying the colored composition according to claim 1 onto a support to form a colored composition layer;
patternwise exposing the colored composition layer; and
developing an unexposed area after the exposure.
18. The colored composition according to claim 1 , wherein the proportion of the repeating units containing a repeating unit having an acid group is from 1 mole to 60 moles with respect to 100 moles of the repeating unit containing the polymer anion.
19. The colored composition according to claim 1 , wherein the acid group contained in the repeating unit is a carboxylic acid group.
20. A colored composition comprising:
a polymer anion having a repeating unit containing a weakly nucleophilic anionic structure; and
a cation having a dye structure,
wherein the weakly nucleophilic anionic structure represents an anionic structure produced by dissociating an organic acid having a lower pKa value than the pKa value of sulfuric acid; and
the cation having a dye structure has a dye structure selected from a dipyrromethene dye, a xanthene dye, a cyanine dye, and a squarylium dye.
21. The colored composition according to claim 20 , wherein the repeating unit containing a weakly nucleophilic anionic structure is represented by General Formula (1):
in which
in General Formula (1), Q represents the main chain of the repeating unit, L represents a single bond or a divalent linking group, and Z is an anionic structure represented by General Formula (2-1), an anionic structure represented by General Formula (2-2), or an anionic structure represented by the following General Formula (2-3);
*—Y 1 -A 1 General Formula (2-1)
in General Formula (2-1), * represents a binding site to L in General Formula (1), Y 1 represents a fluorinated alkylene group, and A 1 represents SO 3 − ;
*—Y 2 -(A 2 ) n General Formula (2-2)
in General Formula (2-2), * represents a binding site to L in General Formula (1), and Y 2 represents an anion including a boron atom, a carbon atom, a nitrogen atom, or a phosphorus atom;
in the case where Y 2 is a boron atom, n is 3, and A 2 's are each a halogen atom, a cyano group, an alkyl group containing at least one of a fluorine atom and a cyano group, or an aryl group containing at least one of a fluorine atom and a cyano group;
in the case where Y 2 is a carbon atom, n is 2, and A 2 's are each a halogen atom, a cyano group, an alkyl group containing at least one of a fluorine atom and a cyano group, an aryl group containing at least one of a fluorine atom and a cyano group, an alkylsulfonyl group which may contain at least one of a fluorine atom and a cyano group, or an arylsulfonyl group which may contain at least one of a fluorine atom and a cyano group, and two A 2 's may be bonded to each other to form a ring;
in the case where Y 2 is a nitrogen atom, n is 1, and A 2 's are each an alkyl group containing at least one of a fluorine atom and a cyano group, an aryl group containing at least one of a fluorine atom and a cyano group, an alkylsulfonyl group which may contain at least one of a fluorine atom and a cyano group, or an arylsulfonyl group which may contain at least one of a fluorine atom and a cyano group; and
in the case where Y 2 is a phosphorus atom, n is 1 or 3, and A 2 's are each an alkyl group containing at least one of a fluorine atom and a cyano group, an aryl group containing at least one of a fluorine atom and a cyano group, an alkylsulfonyl group which may contain at least one of a fluorine atom and a cyano group, or an arylsulfonyl group which may contain at least one of a fluorine atom and a cyano group); and
in General Formula (2-3), * represents a binding site to L in General Formula (1), and R's each represent a cyano group or a fluorinated alkyl group.
22. The colored composition according to claim 21 , wherein in the case where Z in General Formula (1) is represented by General Formula (2-1), L has a fluorinated alkylene group having 1 to 10 carbon atoms.
23. The colored composition according to claim 21 , wherein Z in General Formula (1) is an anionic structure represented by General Formula (2-1), or an anionic structure produced by dissociating at least one group selected from a fluorinated alkylsulfonimide group and a fluorinated alkylsulfonemethide group.
24. The colored composition according to claim 20 , wherein the cation having a dye structure has a polymerizable group.
25. The colored composition according to claim 20 , wherein the polymer anion contains a repeating unit having an acid group.
26. The colored composition according to claim 20 , wherein the colored composition further comprises a polymerizable compound.
27. The colored composition according to claim 20 , wherein the colored composition further comprises a pigment other than the cation having a dye structure.
28. The colored composition according to claim 20 , wherein the colored composition further comprises a photopolymerization initiator.
29. The colored composition according to claim 28 , wherein the photopolymerization initiator is an oxime compound.
30. The colored composition according to claim 20 , wherein the polymer anion having the repeating unit containing a weakly nucleophilic anionic structure and the cation having a dye structure form a dye multimer.
31. A cured film obtained by curing the colored composition according to claim 20 .
32. A color filter comprising the cured film according to claim 31 .
33. A solid-state image sensor comprising the color filter according to claim 32 .
34. An image display device comprising the color filter according to claim 32 .
35. A method for producing a color filter, comprising:
applying the colored composition according to claim 20 onto a support to form a colored composition layer;
patternwise exposing the colored composition layer; and
developing an unexposed area after the exposure.
36. The colored composition according to claim 20 , wherein the cation having a dye structure has a dye structure selected from a xanthene dye and a squarylium dye.