New poly-imidazolium-triazole particles by CuAAC cross-linking of calix[4]arene bis-azide/alkyne amphiphiles - a prospective support for Pd in the Mizoroki-Heck reaction.

Interestingly, macrocycle 5 with 3-azidopropyl fragments have quite significant CAC value, close to that for N -methylbenzimidazolium derivative (CAC = 120 μM), presented in our recent study. 20 This may be a result of increase of the volume of the hydrophilic headgroup of the macrocycle, thanks to the spreading alkylazide groups, oriented to the water phase 26 and preventing thus effective aggregation at lower concentrations.

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