Polymeric colorant-based ink compositions

A polymeric colorant of General Formula I:

• wherein;
• R is independently hydrogen or a monovalent cation;
• R1 and R2 are independently selected from H, alkyl and aryl groups;
• each X is independently:
• O, N, O—R4-O, N—R4-O, O—R4-S, or, and N— R4-S group, wherein R4 is selected from any alkyl, aryl, or heteroatom-containing aromatic or aliphatic ring groups;
• n, m, o and p represent the molar fractions of the distinct molecular units resulted from the reaction of the maleic anbydride units of the copolymer with specified reactants;
• where m+o+p=1, m=0.05−0.7, o=0.1−0.8, p=0−0.5, where n is a number between 1 and 6;
• Chrom is a dye chromophore;
• and
• R3 is selected from any branched, linear or cyclic alkyl group having from 8 to 24 carbons.

An ink composition comprising a polymeric colorant in a carrier, wherein the polymeric colorant is represented by General Formula I:

• wherein:
• R is independently hydrogen or a monovalent cation;
• R1 and R2 are independently selected from H, alkyl and aryl groups;
• each X is independently:
• O, N, O—R4-O, N—R4-O, O—R4-S, or an N— R4-S group, wherein R4 is selected from any alkyl, aryl, or heteroatom-containing aromatic or aliphatic ring groups;
• n, m, o and p represent the molar fractions of the distinct molecular units resulting from the reaction of the maleic anhydride units of the copolymer wit specified reactants;
• where m+o+p=1, m=0.05−0.7, o=0.1−0.8, and p=0.1−0.5, where n is a number between 1 and 6;
• Chrom is a dye chromophore;
• and
• R3 is selected from any branched, linear or cyclic alkyl group having from 8 to 24 carbons.

A printed media containing a deposit of an ink represented by General Formula I:

• wherein:
• R is independently hydrogen or a monovalent cation;
• R1 and R2 are independently selected from H, alkyl and aryl groups;
• each X is independently:
• O, N, O—R4-O, N—R4-O, O—R4-S, or an N— R4-S group, wherein R4 is selected from any alkyl, aryl, or heteroatom-containing aromatic or aliphatic ring groups;
• n, m, o and p represent the molar fractions of the distinct molecular units resulting from the reaction of the maleic anhydride units of the copolymer with specified reactants;
• where m+o+p=1, m=0.05−0.7, o=0.1−0.8, and p=0.1−0.5, where n is a number between 1 and 6;
• Chrom is a dye chromophore;
• and
• R3 is selected from any branched, linear or cyclic alkyl group having from 8 to 24 carbons.