Electroactive (A3+B2)-type hyperbranched polyimides with highly stable and multistage electrochromic behaviors

被引：37
|
作者：
Sun, Ningwei [1 ]
Meng, Shiyao [1 ]
Zhou, Ziwei [2 ]
Chao, Danming [1 ]
Yu, Ye [3 ]
Su, Kaixin [1 ]
Wang, Daming [1 ]
Zhao, Xiaogang [1 ]
Zhou, Hongwei [1 ]
Chen, Chunhai [1 ]
机构：
[1] Jilin Univ, Alan G MacDiarmid Inst, Changchun 130012, Jilin, Peoples R China
[2] Jilin Univ, State Key Lab Supramol Struct & Mat, Changchun 130012, Jilin, Peoples R China
[3] Leibniz Inst Polymerforsch Dresden eV, Inst Phys Chem & Polymer Phys, Hohe Str 6, D-01005 Dresden, Germany
来源：
ELECTROCHIMICA ACTA | 2017年 / 256卷
关键词：
HBPIs; Triphenylamine; Multi-electrochromism; HIGH-PERFORMANCE POLYMERS; DONOR-ACCEPTOR POLYMERS; AROMATIC POLYAMIDES; UNITS SYNTHESIS; SOLAR-CELLS; TRIPHENYLAMINE; NANOSTRUCTURES; DERIVATIVES; YELLOW; DESIGN;
D O I：
10.1016/j.electacta.2017.10.036
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Multicolored electrochromic materials have attracted intense attentions due to their diverse smart applications. In this work, we demonstrate a facile strategy to realize multistage visible/near-infrared (vis/NIR) electrochromism by designing and synthesizing two kinds of novel hyperbranched polyimides (HBPIs) from a novel triamine as an A(3) monomer and two dianhydrides as B-2 monomers. The resulting HBPIs exhibit excellent solubility and thermostability. Cyclic voltammograms of the HBPIs films reveal four reversible redox couples along with five color conversions (colorless-yellow-red-indigo-black). Furthermore, the HBPIs exhibit superb electrochromic performances including continuous modulation over the entire visible region, short response time, high optical contrast, high coloration efficiency, excellent switching stability and long-term optical memory. Accordingly, these HBPIs are promising materials in the applications of electrochromism and even endowing difunctionality combining with supercapacitance. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码：119 / 128
页数：10
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