A retro Diels-Alder Reaction Triggered Self-assembly
발표자
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초록
내용
Despite many studies have been conducted on their chemical application, Diels-Alder (DA) and retro Diels-Alder (rDA) reactions have been vastly unexplored in promoting self-assembly process. Herein we suggest the first example of a rDA reaction-triggered self-assembly method. Removal of the steric bulkiness due to the bridged bicyclic DA adduct by the rDA reaction yields two building blocks that spontaneously self-assembled to form a supramolecular polymer. By employing photopolymerizable diacetylene as building blocks, we demonstrated the efficiency of the rDA-based self-assembly strategy. The entire process of rDA reaction and photopolymerization was confirmed by NMR and Raman spectroscopy. Generation of reactive functional groups (maleimide/furan) that can be used for further modification of the supramolecular polymer is an additional advantage of the rDA-based approach. These functional groups were used to fabricate stimulus-responsive selective and tunable colorimetric sensors.