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Article

Electrochromism in Electropolymerized Films of Pyrene-Triphenylamine Derivatives

1
Key Laboratory of Photochemistry, Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
2
School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
*
Author to whom correspondence should be addressed.
Polymers 2019, 11(1), 73; https://doi.org/10.3390/polym11010073
Received: 21 December 2018 / Revised: 1 January 2019 / Accepted: 2 January 2019 / Published: 5 January 2019
(This article belongs to the Special Issue Electrochromic Polymers)
Two star-shaped multi-triphenylamine derivatives 1 and 2 were prepared, where 2 has an additional phenyl unit between a pyrene core and surrounding triphenylamine units. The oxidative electropolymerization of 1 and 2 occurred smoothly to give thin films of polymers P1 and P2. The electrochemistry and spectroelectrochemistry of P1 and P2 were examined, showing two-step absorption spectral changes in the near-infrared region. The electrochromic properties, including contrast ratio, response time, and cyclic stability of P1 and P2 were investigated and compared. Thin film of P2 displays slightly better electrochromic performance than P1, with a contrast ratio of 45% at 1475 nm being achieved. View Full-Text
Keywords: electropolymerization; electrochromism; electrochemistry; triphenylamine; near-infrared electropolymerization; electrochromism; electrochemistry; triphenylamine; near-infrared
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MDPI and ACS Style

Sun, T.-G.; Li, Z.-J.; Shao, J.-Y.; Zhong, Y.-W. Electrochromism in Electropolymerized Films of Pyrene-Triphenylamine Derivatives. Polymers 2019, 11, 73. https://doi.org/10.3390/polym11010073

AMA Style

Sun T-G, Li Z-J, Shao J-Y, Zhong Y-W. Electrochromism in Electropolymerized Films of Pyrene-Triphenylamine Derivatives. Polymers. 2019; 11(1):73. https://doi.org/10.3390/polym11010073

Chicago/Turabian Style

Sun, Tian-Ge, Zhi-Juan Li, Jiang-Yang Shao, and Yu-Wu Zhong. 2019. "Electrochromism in Electropolymerized Films of Pyrene-Triphenylamine Derivatives" Polymers 11, no. 1: 73. https://doi.org/10.3390/polym11010073

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