| 초록 |
Self-assembly of block copolymers constitute an extensively studied area in polymer chemistry and engineering. Despite the vast literature on solid-phase and solution-phase self-assembly behavior of block copolymers, the most widely used methods involve slow solvent change under highly dilute conditions. Recently, light-induced self-assembly of poly(p-phenylenevinylene) (PPV) block copolymers have been reported. This method involves photochemical isomerization(cis to trans) of the PPV backbone which, in turn, dramatically increase the segment’s crystallinity. Despite such progress, controlled light-induced self-assembly of block copolymers is still scarce, and new methods of inducing robust nanostructures is desirable. We herein report a light-induced self-assembly of acene-bearing block copolymers. The self-assembly is the result of a [4+4] cycloaddition of the acenes in the backbone, resulting in stimulus-induced self-assembly behavior with numerous controllable parameters. |
