Multifunctional polyurethanes synthesized from different triarylamine units with electrochromic, photogeneration, memory storage and sensing properties

Xu Zhang; Qingyi Lu; Caiyu Yang; Shuo Zhao; Yan Wang; Wei Zhang; Haijun Niu; Ping Zhao; Wen Wang; Jinghe Fan

doi:10.1039/C8NJ05159C

Multifunctional polyurethanes synthesized from different triarylamine units with electrochromic, photogeneration, memory storage and sensing properties†

Xu Zhang,^a Qingyi Lu,^a Caiyu Yang,^a Shuo Zhao,^a Yan Wang,^a Wei Zhang,^a Haijun Niu,

*^a Ping Zhao,^b Wen Wang*^c and Jinghe Fan^a

Author affiliations

* Corresponding authors

^a Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, Department of Macromolecular Science and Engineering, School of Chemical, Chemical Engineering and Materials, Heilongjiang University, Harbin 150080, P. R. China
E-mail: haijunniu@hotmail.com

^b Key Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology, Shanghai 20037, P. R. China

^c School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150080, P. R. China
E-mail: wangwen@hit.edu.cn

Abstract

In this work, a series of multifunctional polyurethane (PU) materials containing three kinds of different triarylamine (TAA) units was prepared. These polymers show good solubility in common organic solvents and excellent thermal stability under a N₂ atmosphere. The PU films show reversible color changes with high contrast ratios and electrochromic stability. Moreover, they have good memory storage performance. The ON/OFF current ratio is about two orders of magnitude. Meanwhile, they can be used as detectors for 2,4,6-trinitrotoluene (TNT) and 2,4,6-trinitrophenol (TNP). The polymer solutions rapidly exhibit fluorescence-quenching phenomena when exposed to trace amounts of TNT and TNP. The PU films also have mechanical properties that make them suitable for use in stretchable devices.

New Journal of Chemistry

Multifunctional polyurethanes synthesized from different triarylamine units with electrochromic, photogeneration, memory storage and sensing properties†

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Multifunctional polyurethanes synthesized from different triarylamine units with electrochromic, photogeneration, memory storage and sensing properties

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