Triphenylamine-Based Fluorescent Conjugated Copolymers with Pendant Terpyridyl Ligands as Chemosensors for Metal Ions

被引：25

作者：

Cui, Yi ^{[1
,2
]}

Chen, Qi ^{[1
]}

Zhang, Dan-Dan ^{[1
]}

Cao, Jie ^{[2
]}

Han, Bao-Hang ^{[1
]}

机构：

[1] Natl Ctr Nanosci & Technol, Beijing 100190, Peoples R China

[2] Chinese Acad Sci, Grad Univ, Coll Chem & Chem Engn, Beijing 100049, Peoples R China

来源：

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY | 2010年 / 48卷 / 06期

基金：

美国国家科学基金会;

关键词：

chemosensor; conjugated polymers; fluorescence; metal-polymer complexes; terpyridine; triphenylamine; SUBSTITUENT GROUPS; ENERGY MIGRATION; POLYMERS; RECOGNITION; SENSORS; WATER; POLYIMINOFLUORENE; GLYCOPOLYMERS; POLYFLUORENE; LUMINESCENT;

D O I：

10.1002/pola.23890

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Two well-defined triphenylamine-based fluorescent conjugated copolymers with pendant terpyridyl ligands were synthesized through Suzuki coupling polymerization and were further characterized by H-1-NMR, C-13-NMR, gel permeation chromatography, Infrared, and UV-vis spectra. Polymer P-1, terpyridine-bearing poly(triphenylamine-alt-fluorene) with a high fluorescence quantum yield (62%) shows much higher sensitivities toward Fe3+, Ni2+, and Cu2+ as compared with the other metal ions investigated. Especially, Fe3+ can lead to an almost complete fluorescence quenching of polymer P-1. Whereas, the analogous polymer P-2, in which N-ethylcarbazole repeat units replace the fluorene units in P-1, shows a very poor selectivity. It demonstrates that polymers with a same receptor may show different sensitivity to analytes owing to their different type of backbones. (C) 2010 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 48: 1310-1316, 2010

引用

页码：1310 / 1316

页数：7

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