Synthesis and investigation of a photosensitive, europium-containing polymer

Abstract

A series of europium complexes containing polymeric reactivity groups have been successfully synthesized using a simple method. Among them, Eu(DBM)2(Phen)(MA), which has the best fluorescence properties and solubility, was polymerized with glycidyl methacrylate (GMA) for use as a novel UV-written polymer material. The Poly (GMA-co-Eu(DBM)2(Phen)(MA)) containing different proportions of europium were prepared, and their spectroscopic properties were investigated in detail. Polymer films with optimum proportions (a molar ratio between GMA and Eu(DBM)2(Phen)(MA) of 15) exhibited good UV light lithograph sensitivities, strong visible fluorescence intensities, high glass transition temperatures (Tg: >170°C), good thermal stabilities (Td: up to 295°C) and solvent resistances after crosslinking. Micro patterns with smooth top surfaces were fabricated from the resulting polymer by using direct UV exposure and chemical development.