Here, we show the induced chirality of an achiral chromophoric dye as a joint of polylactide-containing chiral block copolymers (BCPs*) driven by self-assembly, giving the achiral dyes preferentially arranged in a one-handed helical array at the microphase-separated interface. This helical arrangement of the achiral dyes can be “memorized” after hydrolysis of the polylactides in the BCPs* and serves as a chiral template for further chirality induction of different achiral dyes, probably through attractive aromatic π–π interactions at the interface, producing nanostructured chiral materials with tunable circular dichroism signals at desired wavelengths.

中文翻译：

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用于纳米结构手性材料的自组装手性嵌段共聚物微相分离界面的手性控制及其记忆

在这里，我们展示了一种非手性发色染料的诱导手性，它是由自组装驱动的含聚丙交酯的手性嵌段共聚物 (BCP*) 的接头，使非手性染料在微相分离处优先排列成单手螺旋阵列界面。这种非手性染料的螺旋排列可以在 BCP* 中的聚丙交酯水解后被“记忆”，并作为手性模板用于进一步诱导不同非手性染料的手性，可能是通过界面处有吸引力的芳香族 π-π 相互作用，产生纳米结构的在所需波长处具有可调谐圆二色性信号的手性材料。