A novel polymerizable pigment based on surfactant-encapsulated polyoxometalates and their application in polymer coloration

A novel polymerizable pigment based on polymerizable surfactant-encapsulated polyoxometalate complexes has been developed. While retaining the intrinsic colors of polyoxometalates, the complexes are organically compatible and are readily incorporated into polymer matrices by means of copolymerization. During the copolymerization process, the complexes can covalently graft onto polymer chains, creating a molecular hybrid between the complexes and polymer matrices, thereby effectively avoiding phase separation between the two components which results in high transparency of the colored polymer. In addition, the complexes exhibit good coloration efficacy, provide stable colors and have little effect on polymer processibility.