Synthesis, properties, and material hybridization of bare aromatic polymers enabled by dendrimer support.
Synthesis, properties, and material hybridization of bare aromatic polymers enabled by dendrimer support.
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DOI：
10.1038/s41467-022-33100-7
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发表时间：
2022-09-16
影响因子：
16.6
通讯作者：
Itami, Kenichiro
中科院分区：
文献类型：
--
作者：
Fujiki, Shusei;Amaike, Kazuma;Yagi, Akiko;Itami, Kenichiro
芳香族聚合物因其独特的光学、电子和机械性能以及生物相容性而成为当前有机材料的首选平台。然而，裸露的芳香族聚合物骨架倾向于强烈聚集，使它们基本上不溶于有机溶剂。虽然典型的解决方案是在主干上安装许多增溶取代基，但这通常会引起不希望的性质变化。在这里，我们报告了由树状分子支持的裸芳香聚合物的合成。一种含有二萜基树状大分子的引发剂芳烃与不含增溶取代基的单体进行pd催化聚合，得到裸露的芳香族聚合物，如聚噻吩和聚对苯。树突状链结聚合物的高溶解度不仅揭示了未取代π共轭主链的性质，而且使无树突状链结的芳香族聚合物温和释放，甚至将芳香族聚合物转移到其他材料上，如硅胶和蛋白质，这可能加速目前难以获得的杂化材料的创造。非取代芳香族聚合物是具有多种潜在应用的材料，但其制备仍然具有挑战性。在这里，作者报告了一种树状聚合物合成的可溶性裸芳香聚合物，并探索了它们的性质；这些化合物可以进一步转化为其他材料。
Aromatic polymers are the first-choice platform for current organic materials due to their distinct optical, electronic, and mechanical properties as well as their biocompatibility. However, bare aromatic polymer backbones tend to strongly aggregate, rendering them essentially insoluble in organic solvent. While the typical solution is to install many solubilizing substituents on the backbones, this often provokes undesired property changes. Herein, we report the synthesis of bare aromatic polymers enabled by a dendrimer support. An initiator arene containing a diterpenoid-based dendrimer undergoes Pd-catalyzed polymerization with monomers bearing no solubilizing substituents to furnish bare aromatic polymers such as polythiophenes and poly(para-phenylene)s. The high solubility of dendrimer-ligated polymers allows not only the unveiling of the properties of unsubstituted π-conjugated backbone, but also mild release of dendrimer-free aromatic polymers and even transfer of aromatic polymers to other materials, such as silica gel and protein, which may accelerate the creation of hybrid materials nowadays challenging to access. Unsubstituted aromatic polymers are materials with multiple potential applications, but their preparation remains challenging. Here, the authors report a dendrimer-enabled synthesis of soluble bare aromatic polymers and explore their properties; these compounds can be further transformed into other materials.
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影响因子：
15
作者：
Izumi, T;Kobashi, S;Otsubo, T
通讯作者：
Otsubo, T
DOI：
10.1073/pnas.082013899
发表时间：
2002-04-16
影响因子：
11.1
作者：
Fréchet, JMJ
通讯作者：
Fréchet, JMJ
DOI：
10.1039/c39830000954
发表时间：
1983-01-01
影响因子：
--
作者：
BALLARD, DGH;COURTIS, A;TAYLOR, SC
通讯作者：
TAYLOR, SC
影响因子：
4.6
作者：
Geyik, Caner;Guler, Emine;Yagci, Yusuf
通讯作者：
Yagci, Yusuf
影响因子：
8
作者：
Cantelli A;Malferrari M;Soldà A;Simonetti G;Forni S;Toscanella E;Mattioli EJ;Zerbetto F;Zanelli A;Di Giosia M;Zangoli M;Barbarella G;Rapino S;Di Maria F;Calvaresi M
通讯作者：
Calvaresi M