Recently, although several unconventional luminescent polymers have been synthesized, it still remains a significant challenge to prepare various new fluorescent polymers by functionalization of nonfluorescent polymers. A nonfluorescent 1H,1H,2H,2H-perfluoro-1-decanol grafted to nonfluorescent polystyrene-b-poly(acrylic acid) block copolymers through simply esterification reaction can exhibit strong blue emission. On the basis of control experiments and theoretical simulation, we have proposed that the luminescence stems from interchain n → π* interaction between the lone pair (n) of hydroxyl O atoms of carboxyl units and empty π* orbital of ester carbonyl unit. In addition, the fluorescent polymers are successfully employed for fluorescence imaging in living HeLa cell.

中文翻译：

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自发荧光聚合物：1 H，1 H，2 H，2 H-全氟-1-癸醇接枝的聚（苯乙烯-b-丙烯酸）嵌段共聚物，不含常规的荧光团

近来，尽管已经合成了几种非常规的发光聚合物，但是通过非荧光聚合物的官能化来制备各种新的荧光聚合物仍然仍然是一个巨大的挑战。非荧光1 H，1 H，2 H，2 H-全氟-1-癸醇接枝到非荧光聚苯乙烯-b通过简单的酯化反应生成的-聚（丙烯酸）嵌段共聚物会显示出强烈的蓝色发光。在控制实验和理论模拟的基础上，我们提出了发光源于链间n→π*相互作用，其中羧基单元的羟基O原子的孤对（n）与酯羰基单元的空π*轨道之间。此外，荧光聚合物已成功用于活HeLa细胞的荧光成像。