Blue-light activated rapid polymerization for defect-free bulk Cu(<scp>i</scp>)-catalyzed azide–alkyne cycloaddition (CuAAC) crosslinked networks

Abstract

A visible-light (470 nm wavelength) sensitive Type II photoinitiator system is developed for bulk Cu(i)-catalyzed azide-alkyne cycloaddition (CuAAC) reactions in crosslinked networks. The accelerated photopolymerization eliminates UV-mediated azide decomposition allowing for the formation of defect-free glassy networks which exhibit a narrow glass transition temperature.