Abstract: Structurally dyed random polymers and copolymers characterized in that their chain comprises a dye of the formula: ##STR1## wherein the residue --CH.dbd.CH--CN is fixed in position 4 or 5, X represents a hydrogen or halogen atom, the benzene ring A can be substituted by halogen atoms, alkyl, alkoxy or acylamino groups, m represents 0 or 1 and B represents the residue of a coupling component, either substituted or unsubstituted and which is free of sulfonic or carboxylic acid groups. Such dyed polymers and copolymers are intensely dyed and useful for making yarns, molded articles, varnishes, synthetic resins, synthetic fibers, and the like. The dye forms an integral part of the chain structure of the polymers and copolymers.

Abstract: Copolymers of acrylamide and dyes, usable as prepolymers for the preparation of structurally dyed macromolecular materials. The dyes have a polymerizable double bond, such as maleimido, acryloylamino or cyanovinyl groups.