Kocaarslan et al. employ a heterogeneous near-infrared catalytic system using up-conversion glass (UCG) and g-CN to synthesize (macro)molecules via click chemistry.     The efficiency and accessibility of “click” chemistry, and more specifically the copper-catalyzed azide-alkyne cycloaddition reaction (CuAAC), have been valorized in synthetic macromolecular chemistry via a plethora of approaches. In this synthetic arena, […]