Poly(BODIPY)s: A New Class of Tunable Polymeric Dyes
Poly(BODIPY)s: A New Class of Tunable Polymeric Dyes
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DOI：
10.1021/ma900727k
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发表时间：
2009-09-08
期刊：
影响因子：
5.5
通讯作者：
Herrmann, Andreas
中科院分区：
文献类型：
--
作者：
Alemdaroglu, Fikri E.;Alexander, Seth C.;Herrmann, Andreas
我们提出了一类新的聚合物染料轴承二氟硼并苯（BODIPY）的发色团的主链。以二碘化BODIPY单体为原料，通过过渡金属催化缩聚反应，高效地合成了具有完全共轭主链的均聚物和共聚物。在本体和单分子水平上研究了所得聚合物材料的物理化学性质。发现BODIPY均聚物类似于单个BODIPY发色团的吸收和发射性质。相比之下，1，4-二乙炔基苯和苯的共聚物产物表现出吸收和发射光谱，其相对于均聚物分别发生了浅色和深色偏移，从而允许通过选择共聚单体来容易地进行颜色调节。BODIPY均聚物的荧光量子产率非常高（57%）。在单分子研究中证实了材料的异常亮度，BODIPY均聚物发射的光子比公认的荧光探针罗丹明6 G多几倍，量子产率接近1。
We present a new class of polymeric dyes bearing the difluoroboraindacene (BODIPY) chromophore within the main chain. Starting from a diiodinated BODIPY monomer, homo- and copolymers with a fully conjugated backbone were efliciently synthesized by transition-metal-catalyzed polycondensation reactions. The photophysical properties of the resulting polymeric materials were investigated in bulk and at the single molecule level. It Was found that the BODIPY homopolymer resembles the absorption and emission properties of the individual BODIPY chromophore. In contrast, the copolymer products of 1,4-diethynylbenzene and benzene exhibit absorption and emission spectra that are shifted hypsochromically and bathochromically in regard to the homopolymer, respectively, allowing for easy color tuning by the choice of comonomers. The fluorescence quantum yield of the BODIPY homopolymer is remarkably high (57%). The exceptional brightness of the materials was confirmed in the single molecule investigations the BODIPY homopolymer emitted several times more photons than the well-establislicd fluorescent probe Rhodamine 6G with a quantum yield close to unity.