Surface modified pigment particles, comprising: a surface on organic pigment particles containing a plurality of functional groups Q that are the same or are different and are selected from among a hydroxyl, phenolic, thiol and thiophenolic group; and a modifying compound M bonded to the surface via hydrogen bonds or via a covalent bond with the functional group Q to form the group -Q-M on the surface; wherein: the modifying compound M comprises a product formed by a full or partial hydrolysis of a compound of Formula: wherein: φ is a linear, branched or dendritic polymeric chain having a molecular weight from about 100 to about 5,000,000; L is -NR 3 C NH-, -OC NH-, -C OCH 2 CH CH 2 -, -OCH 2 CH CH 2 -, -NHCH 2 CH CH 2 -, -alkylene-, -C O-, -C NR 3 -, -SO 2 NR 3 -, -SO 2 -, -NR 3 -, =N-, ≡N + -, -O- or -S-; each E independently is alkylene, arylene, alkylarylene, arylalkylene, alkyleneamino, alkyleneimino, alkyleneoxyalkylene, aryleneoxy, aryleneoxyalkylene, oxaalkylene, oxyalkylene, dioxyalkylene or oxyarylene; each R 1 independently is H, hydroxyl, oxyalkyl, oxyalkylenearyl, halogen, acetate or amine; each R 2 independently is alkyl, cycloalkyl, cycloheteroalkyl, aryl or alkylenearyl; R 3 is H, alkyl, aryl or alkylaryl; m = 1 to 3; n = 0 to 2; m + n = 3 and x = 1 or 2. a surface on organic pigment particles containing a plurality of functional groups Q that are the same or are different and are selected from among a hydroxyl, phenolic, thiol and thiophenolic group; and a modifying compound M bonded to the surface via hydrogen bonds or via a covalent bond with the functional group Q to form the group -Q-M on the surface; wherein: the modifying compound M comprises a product formed by a full or partial hydrolysis of a compound of Formula: wherein: φ is a linear, branched or dendritic polymeric chain having a molecular weight from about 100 to about 5,000,000; L is -NR 3 C NH-, -OC NH-, -C OCH 2 CH CH 2 -, -OCH 2 CH CH 2 -, -NHCH 2 CH CH 2 -, -alkylene-, -C O-, -C NR 3 -, -SO 2 NR 3 -, -SO 2 -, -NR 3 -, =N-, ≡N + -, -O- or -S-; each E independently is alkylene, arylene, alkylarylene, arylalkylene, alkyleneamino, alkyleneimino, alkyleneoxyalkylene, aryleneoxy, aryleneoxyalkylene, oxaalkylene, oxyalkylene, dioxyalkylene or oxyarylene; each R 1 independently is H, hydroxyl, oxyalkyl, oxyalkylenearyl, halogen, acetate or amine; each R 2 independently is alkyl, cycloalkyl, cycloheteroalkyl, aryl or alkylenearyl; R 3 is H, alkyl, aryl or alkylaryl; m = 1 to 3; n = 0 to 2; m + n = 3 and x = 1 or 2. φ is a linear, branched or dendritic polymeric chain having a molecular weight from about 100 to about 5,000,000; L is -NR 3 C NH-, -OC NH-, -C OCH 2 CH CH 2 -, -OCH 2 CH CH 2 -, -NHCH 2 CH CH 2 -, -alkylene-, -C O-, -C NR 3 -, -SO 2 NR 3 -, -SO 2 -, -NR 3 -, =N-, ≡N + -, -O- or -S-; each E independently is alkylene, arylene, alkylarylene, arylalkylene, alkyleneamino, alkyleneimino, alkyleneoxyalkylene, aryleneoxy, aryleneoxyalkylene, oxaalkylene, oxyalkylene, dioxyalkylene or oxyarylene; each R 1 independently is H, hydroxyl, oxyalkyl, oxyalkylenearyl, halogen, acetate or amine; each R 2 independently is alkyl, cycloalkyl, cycloheteroalkyl, aryl or alkylenearyl; R 3 is H, alkyl, aryl or alkylaryl; m = 1 to 3; n = 0 to 2; m + n = 3 and x = 1 or 2.