From aerospace to screen: Multifunctional poly(benzoxazine)s based on different triarylamines for electrochromic, explosive detection and resistance memory devices

Yan Wang; Haiying Niu; Qingyi Lu; Wei Zhang; Xin Qiao; Haijun Niu; Yanhong Zhang; Wen Wang

doi:10.1016/j.saa.2019.117524

From aerospace to screen: Multifunctional poly(benzoxazine)s based on different triarylamines for electrochromic, explosive detection and resistance memory devices

Spectrochim Acta A Mol Biomol Spectrosc. 2020 Jan 15:225:117524. doi: 10.1016/j.saa.2019.117524. Epub 2019 Sep 10.

Authors

Yan Wang¹, Haiying Niu², Qingyi Lu¹, Wei Zhang¹, Xin Qiao¹, Haijun Niu³, Yanhong Zhang⁴, Wen Wang⁵

Affiliations

¹ 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 150086, PR China.
² Daxinganlingshiyan Middle School, Heilongjiang Province 16500, PR China.
³ 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 150086, PR China. Electronic address: haijunniu@hotmail.com.
⁴ 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 150086, PR China. Electronic address: zhangyanhong@hlju.edu.cn.
⁵ School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150080, PR China. Electronic address: wangwen@hit.edu.cn.

PMID: 31525631
DOI: 10.1016/j.saa.2019.117524

Abstract

Four kinds of main-chain benzoxazine polymers (PBZ) containing triarylamine (TAA) units were synthesized by Mannich reaction and characterized by ¹H nuclear magnetic resonance (NMR), Fourier transform infrared (FT-IR) techniques, etc. Thermal, optical, photophysical and electrochemical properties were studied. The 50% of char residue is left in N₂ at 800 °C. The polymers are soluble in common organic solvents and easily spin-coated onto indium‑tin oxide (ITO) coated glass substrates. All the polymers have voltage window ranging from 0 to 1.8 V, and the colors change from yellowish to dark red when voltage is applied. Meanwhile, device assembled from polymer exhibit significant color changes. Furthermore, the polymers also have promising potential application in explosive detection and resistance memory devices.

Keywords: Benzoxazine; Explosive detection; Fluorescence; Resistance memory; Triarylamine.