Using a two-in-one strategy, we synthesize three polymers of fluorene derivative with asymmetric structure functionalized with two types of arenes with different orientations and electronic properties. The polymers are connected by an imine bond, hanging on two sides of fluorene with different orientations, one is fluorene–C–N and the other one is fluorene–N–C. In such asymmetric polymers, electron density, conjugation degree, and even the stability of the imine bond can be finely tuned. P1 demonstrates ultra-high selectivity towards s-SWCNTs and can be easily removed for releasing bare s-SWCNTs under acid stimuli. The theory calculation and photophysical experiments help us gain a better understanding of the relationship between polymer structure and separation ability towards s-SWCNTs.

中文翻译：

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合成不对称亚胺聚合物，用于通过二合一策略对半导体单壁碳纳米管进行高选择性分选


使用二合一策略，我们合成了三种具有不对称结构的芴衍生物聚合物，用两种具有不同取向和电子性质的芳烃功能化。聚合物通过亚胺键连接，悬挂在芴的两侧，具有不同的取向，一个是芴-CN，另一个是芴-NC。在这种不对称聚合物中，电子密度、共轭度，甚至亚胺键的稳定性都可以微调。P1 对 s-SWCNT 表现出超高选择性，在酸刺激下很容易去除以释放裸露的 s-SWCNTs。理论计算和光物理实验帮助我们更好地了解聚合物结构与对 s-SWCNTs 分离能力之间的关系。