Concurrent Covalent and Supramolecular Polymerization

摘要

Covalent and supramolecular polymerizations, both of which offer their own unique advantages, have emerged as popular strategies for making artificial materials. Herein, we describe a concurrent covalent and supramolecular polymerization strategynamely, one which utilizes 1)a bis-azide-functionalized diazaperopyrenium dication that undergoes polymeriation covalently with a bis-alkyne-functionalized biphenyl derivative in one dimension as a result of a rapid and efficient -cyclodextrin(CD)-accelerated, cucurbit6uril(CB)-templated azide-alkyne cycloaddition, while 2)the aromatic core of the dication is able to dimerize in a criss-cross fashion by dint of - interactions, enabling simultaneous supramolecular assembly, resulting in an extended polymer network in an orthogonal dimension.