A wide range of high- performance and functional materials can be made using bare aromatic polymers. Their synthesis is hampered by their parent compounds. Scientists from Nagoya University in Japan have found a solution to this problem. The bare aromatic polymers could be successfully transferred to other materials to create unique hybrid materials that have the potential to be novel functional materials.
Due to their distinct optical, electronic, and mechanical properties, aromatic polymers are the first-choice platform for next- generation materials. Poly(para-phenylene)s and polythiophenes have received a lot of interest because of their high performance.
There is a lot of interest in the synthesis of aromatic polymers as their properties depend on structural factors. Due to strong intermolecular interactions, the parents are insoluble to the solvent. The direct, property analysis, and material manipulation/transfer of long bare aromatic polymers have not been done because of the solubility problem. BarePPPs are hard to analyze and use.
A team led by Professor Kenichiro Itami and Designated Associate Professor Akiko Yagi developed a method of hanging aromatic polymers to a dendrimer that enables chain-unsubstituted "bare" The results were published in a journal.
dendrimers have a variety of functions as they have a lot of end groups. Shusei Fujiki is the first author of the paper.
The on-dendrimer synthesis of bare aromatics was investigated. This technique was used to synthesise a variety of bare aromatic polymers.
They were able to reveal the photophysical properties of the -conjugated backbone of the bare aromatic polymers, which had been difficult because of its low solubility. Unsubstituted aromatic polymers were obtained by releasing the dendrimer support.
Due to high solubility brought by dendrimer support, the bare aromatic polymers were successfully transferred to other materials to create unique hybrid that have organic Semiconductor properties and have potential to become novel Functional Materials. The proof-of-concept study showed that the aromatic polymer could be used as a reagent to introduce unsubstituted and insoluble aromatic structures to other materials.
It has been a problem in science for a long time. They are fascinating because they are hard to get. Akiko Yagi is a co- leader of the project.
The work has opened a new vista in the chemistry of aromatics. Transferring bare aromatic polymers to other materials is the highlight of our research. The leader of the research group says that a number of hybrid materials with bare -conjugated structures will be accessible. The team wants to use this technology to make functional hybrid materials.
More information: Shusei Fujiki, Kazuma Amaike, Akiko Yagi & Kenichiro Itami, Synthesis, properties, and material hybridization of bare aromatic polymers enabled by dendrimer support, Nature Communications (2022). DOI: 10.1038/s41467-022-33100-7. www.nature.com/articles/s41467-022-33100-7 Journal information: Nature Communications
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