Png, Z. M., Seah, K. K. G. E., Chua, M. H., Zhu, Q., Goh, S. S., & Xu, J. (2023). Functionalized Poly(azulenes) and Their Electrochromic Properties. ChemistrySelect, 8(45). Portico. https://doi.org/10.1002/slct.202302183
Abstract:
In this work, five 2‐ or 6‐ functionalized azulenes are electropolymerized to form azulene homopolymers. All five poly(azulenes) films exhibited electrochromism, with a two‐stage oxidation corresponding to the formation of the azulenium cation and the polaron, respectively. Electron‐donating groups at the 2‐position of azulene were found to greatly increase the poly(azulenes) film stability, with retention of optical contrast about four times as much as the 6‐alkylazulene analogue. This result demonstrates the potential of azulene functionalization as a strategy to improve the long‐term stability of electropolymerized azulenes, enabling applications in both optoelectronics as well as in ion selective electrodes.
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Funding Info:
This research is supported by core funding from: Agency for Science, Technology and Research (A*STAR), Science and Engineering Research Council
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Description:
This is the peer reviewed version of the following article: Png, Z. M., Seah, K. K. G. E., Chua, M. H., Zhu, Q., Goh, S. S., & Xu, J. (2023). Functionalized Poly(azulenes) and Their Electrochromic Properties. ChemistrySelect, 8(45). Portico. https://doi.org/10.1002/slct.202302183, which has been published in final form at https://doi.org/10.1002/slct.202302183. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited.