An air-stable supported Cu（I） catalyst for azide-alkyne click polymerization

An air-stable supported Cu（I） catalyst, CuI@PS-Phen, was designed and synthesized. CuI@PS-Phen can efficiently catalyze the click polymerization of diynes a and diazides b to produce soluble and thermally stable polytriazoles with high molecular weights （Mw up to 30800）, and low copper residue content （down to 190 ppm） in high yields （up to 94.2%） under mild reaction conditions without the exclusion of oxygen.