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A Long π-Conjugated Poly-para-Phenylene-Based Polymeric Segment of Single-Walled Carbon Nanotubes

preprint
submitted on 03.10.2019 and posted on 07.10.2019 by Qiang Huang, Mengmeng Zhang, Jinyi Wang, Shengda Wang, Yayu Wu, Shangfeng Yang, Pingwu Du
Conjugated polymers have attracted much attention for many years and have applications in various organic devices. Carbon nanotubes can be considered as all-carbon tube-shaped conjugated polymers containing only sp2-bonded atoms, which play an important role in nanotechnology and nanoelectronics. So far, no study has reported the realization of long π-conjugated polymers as diameter-specified carbon nanotube segments. Herein, we report the first synthesis of a π-conjugated polymeric segment (PS1) of armchair single-walled carbon nanotubes. PS1 is achieved by a rationally designed synthesis of a bifunctionalized cyclo-para-phenylene monomer, followed by inserting these ring-shaped units into the conjugated poly-para-phenylene backbone. Our PS1 was fully characterized by gel permeation chromatography (GPC) combined with NMR, FTIR, and Raman spectra. Its photophysical and unique electronic properties were also investigated. Possessing unique structural and physical properties, this long π-extended polymer PS1 can provide new insight for the development of bottom-up syntheses of uniform carbon nanotube segments and potential applications in electron-transport devices.

Funding

National Natural Science Foundation of China (Grant No. 21971229)

the National Key Research and Development Program of China (Grant No. 2017YFA0402800)

National Natural Science Foundation of China

History

Email Address of Submitting Author

dupingwu@ustc.edu.cn

Institution

University of Science and Technology of China

Country

China

ORCID For Submitting Author

0000-0002-2715-0979

Declaration of Conflict of Interest

The authors declare no conflict of interest

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