Synthesis of n-Type π-Conjugated Polymers with Pendant Crown Ether and Their Stability of n-Doping State against Air
Synthesis of n-Type π-Conjugated Polymers with Pendant Crown Ether and Their Stability of n-Doping State against Air
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DOI：
10.1021/ma101731v
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发表时间：
2010-10
期刊：
影响因子：
5.5
通讯作者：
I. Yamaguchi;Hidehito Mitsuno
中科院分区：
文献类型：
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作者：
I. Yamaguchi;Hidehito Mitsuno
通过有机金属缩聚反应合成了1,2,4-三唑环4位苯并-15-冠-5-醚(Benzo15C5)亚基取代的n型π-共轭聚合物。聚合物的紫外可见光谱在比 4-苯并15C5-1,2,4-三唑（模型 1）更长的波长处表现出最大吸收（λmax 值），表明它们的 π 共轭体系沿着聚合物链扩展。电导率测量表明模型1分别与Na+和K+形成摩尔比为1:1和2:1的包合物。将KClO4添加到苯并15C5亚基聚合物的DMSO溶液中，导致15C5环和K+之间形成2:1包合物；这种夹杂物导致聚合物的 λmax 发生红移。此外，向溶液中添加KClO4 后，聚合物的光致发光强度降低。具有苯并15C5亚基的聚合物经历了电化学还原（n...
The n-type π-conjugated polymers with a 1,2,4-triazole ring substituted by a benzo-15-crown-5-ether (benzo15C5) subunit at the 4-position of the 1,2,4-triazole ring were synthesized by organometallic polycondensations. The UV−vis spectra of the polymers exhibited absorption maxima (λmax values) at a longer wavelength than that exhibited by 4-benzo15C5-1,2,4-triazole (model-1), revealing that their π-conjugation system was expanded along the polymer chain. The electric conductivity measurements suggested that model-1 formed inclusion adducts with 1:1 and 2:1 molar ratios with Na+ and K+, respectively. Addition of KClO4 to the DMSO solutions of the polymers with the benzo15C5 subunit caused the formation of the 2:1 inclusion between the 15C5 ring and K+; this inclusion led to a bathochromic shift in λmax of the polymers. In addition, photoluminescence intensity of the polymers decreased after the addition of KClO4 to solution. The polymers with the benzo15C5 subunit underwent an electrochemical reduction (n...