Vn. Serova et al., Effect of urea and thiourea derivatives on the photochemical stability of colorless and colored methyl methacrylate-methacrylic acid copolymers, RUS J AP CH, 72(11), 1999, pp. 1997-2002
The effect of a series of urea and thiourea derivatives on the photochemica
l stability (including laser resistance) of methyl methacrylate-methacrylic
acid copolymer (colorless and dyed with Rhodamine 6Zh) was examined. A cor
relation was revealed between the chemical nature and photostabilizing effe
ct of the compounds. The possible mechanisms of their photostabilizing effe
ct were discussed.