A coloured polymer containing repeat units derived from at least one azo dye which is free from water-solubilising groups and contains at least one polymerisable olefinically unsaturated group and has the formula:wherein A represents the reside of a carbocyclic or heterocyclic diazotisable amine containing at least one electron-withdrawing substituent and E represents the residue of a carbocyclic or heterocyclic coupling component with the proviso that when both A and E are carbocyclic, the residue of the diazotisable amine does not contain a nitro or chloro substituent except when another different electron-withdrawing substituent is also present, the or each polymerisable group being at tached to a carbon atom forming part of residue A or E.
一种含有至少一种偶氮
染料衍生的重复单元的彩色聚合物,该聚合物不含
水溶性基团,并含有至少一个可聚合的烯烃不饱和基团,其结构式如下其中 A 代表碳环或杂环可重氮化胺的残基,该胺含有至少一个抽电子取代基,E 代表碳环或杂环偶联组分的残基,但条件是当 A 和 E 都是碳环时,重氮化胺的残基是碳环或杂环偶联组分的残基,但条件是当 A 和 E 都是碳环时,重氮化胺的残基是碳环或杂环偶联组分的残基、可重氮化胺的残基不含硝基或
氯基取代基,除非同时存在另一个不同的抽电子取代基,可聚合基团或每个可聚合基团与构成残基 A 或 E 一部分的碳原子相连。