A polymer compound is provided which is suitable to improve the dispersibility of coloring materials or solids in an ink or toner composition and which has a repeating unit represented by the general formula (2): (2) wherein X′ represents a polyalkenyl group; each A represents independently a linear or branched alkylene group of 1 to 15 carbon atoms which may be substituted; m represents an integer of 0 to 30; B represents a single bond or an alkylene group which may be substituted; each D represents independently an aromatic ring in which at least one hydrogen atom attached to the ring is displaced by a fluorine atom; n represents an integer of 1 to 10; and R represents a hydrogen atom, an alkyl group which may be substituted, or an aromatic ring which may be substituted.
提供了一种适用于改善油墨或调色剂组分中着色材料或固体的分散性的聚合物化合物,其具有由通式(2)表示的重复单元:(2)其中X'表示聚烯烃基团;每个A分别表示1至15个碳原子的线性或支链烷基基团,可以被取代;m表示0至30的整数;B表示单键或可以被取代的烷基基团;每个D独立地表示一个芳香环,其中至少有一个连接到环上的氢原子被
氟原子取代;n表示1至10的整数;R表示氢原子,可以被取代的烷基基团或可以被取代的芳香环。