Catalytic effect of microflow space for supramolecular block co-polymerization of water-soluble porphyrins.

Using microflow space, a catalytic effect was achieved for supramolecular polymerization. With increasing reactivity at the polymer end, the selective connection of active monomers formed new block domains, avoiding fast homo-assembly. Binding of less-reactive monomers at the polymer end overcame steric bulkiness, affording a stable supramolecular diblock copolymer (SdiBCP).