Click-based AB-type monomers enables bidirectional chain-growth, yielding long-chain, uniform polymers with narrow dispersity

https://www.eurekalert.org/news-releases/1090475

"no longer limited to step-growth, leverages copper-catalyzed azide–alkyne cycloaddition... monomers add selectively growing chains's reactive ends, enabling precise control over polymer length/ structure... Azide-type initiators began chain growth from monomer's alkyne end, yielding triazole rings with terminal azide groups... alkyne-type initiators produced chains ending in alkyne groups... biomedical, constructing functional macromolecular architectures from wide range of monomers"

Related: Nanoreactor cage uses visible light for catalytic and ultra-selective cross-cycloadditions

https://phys.org/news/2025-10-nanoreactor-cage-visible-catalytic-ultra.html