Novel electrochromic triphenylamine-based polyamides containing quinolin-8-yloxy group as probes for metal ions

被引：21
|
作者：
Cai, Wanan [1 ]
Xiao, Tiandi [1 ]
Niu, Haijun [1 ]
Bai, Xuduo [1 ]
Zhang, Yanhong [1 ]
Wang, Cheng [1 ]
Wang, Wen [2 ]
Qi, Hong [3 ]
机构：
[1] Heilongjiang Univ, Sch Chem Chem Engn & Mat, Dept Macromol Sci & Engn, Key Lab Funct Inorgan Mat Chem,Minist Educ, Harbin 150086, Heilongjiang, Peoples R China
[2] Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150080, Heilongjiang, Peoples R China
[3] Harbin Inst Technol, State Key Lab Urban Water Resource & Environm, Harbin 150090, Heilongjiang, Peoples R China
来源：
SENSORS AND ACTUATORS B-CHEMICAL | 2017年 / 252卷
基金：
美国国家科学基金会;
关键词：
Polyamide; Triphenylamine; Electrochromic; Probe; FLUORESCENT CHEMOSENSORS; DELAYED FLUORESCENCE; AROMATIC POLYAMIDES; CU2+ IONS; SENSOR; POLYIMIDES; DERIVATIVES; COPPER(II); ACETONITRILE; HG2+;
D O I：
10.1016/j.snb.2017.06.022
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A new series of soluble electrochromic polyamides (PAs) were synthesized from the reaction of 4,4'-diamino-4"-(quinolin-8-yloxy) triphenylamine (DAQTPA) with five dicarboxylic acid via direct poly condensation process, respectively. These amorphous materials showed the decomposition temperature at 5% weight loss was over 400 degrees C in N-2 atmosphere. The influence of aliphatic structure for spectroscopic properties of PA was measured by UV-vis and fluorescent (PL) spectroscopies and explained by the theory of the frontier molecular orbitals. It can be easily determined that DAQTPA performs the most strongly responsive to Cu2+ with obvious enhancement in UV-vis and quenching in PL profiles, which are completely different from the response of other metal ions. PAs also showed the exclusively selective response for Cu2+ in UV-vis spectra. A pair of obvious redox peaks was observed in the cyclic voltammetry (CV) test of PAs accompanied with the distinct color changed from original yellowish to green or blue. The PA bearing the pendent quinolin-8-yloxy performed as an electron-donating group was more stable in the electrochemical process. (C) 2017 Elsevier B.V. All rights reserved.
引用
收藏
页码：330 / 339
页数：10
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