title: Polymerization of novel methacrylated anthraquinone dyes.
abstract: A new series of polymerizable methacrylated anthraquinone dyes has been synthesized by nucleophilic aromatic substitution reactions and subsequent methacrylation. Thereby, green 5,8-bis(4-(2-methacryloxyethyl)phenylamino)-1,4-dihydroxyanthraquinone (2), blue 1,4-bis(4-((2-methacryloxyethyl)oxy)phenylamino)anthraquinone (6) and red 1-((2-methacryloxy-1,1-dimethylethyl)amino)anthraquinone (12), as well as 1-((1,3-dimethacryloxy-2-methylpropan-2-yl)amino)anthraquinone (15) were obtained. By mixing of these brilliant dyes in different ratios and concentrations, a broad color spectrum can be generated. After methacrylation, the monomeric dyes can be covalently emplaced into several copolymers. Due to two polymerizable functionalities, they can act as cross-linking agents. Thus, diffusion out of the polymer can be avoided, which increases the physiological compatibility and makes the dyes promising compounds for medical applications, such as iris implants.
authors.affiliation: Institute for Organic and Macromolecular Chemistry II, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany.
authors.forename: Christian
authors.initials: C
authors.lastname: Dollendorf
authors.forename: Susanne Katharina
authors.initials: SK
authors.lastname: Kreth
authors.forename: Soo Whan
authors.initials: SW
authors.lastname: Choi
authors.forename: Helmut
authors.initials: H
authors.lastname: Ritter
keywords: anthraquinone; blue dyes; green; monomeric dyes; polymer; red