Journal
REACTIVE & FUNCTIONAL POLYMERS
Volume 68, Issue 12, Pages 1715-1721Publisher
ELSEVIER
DOI: 10.1016/j.reactfunctpolym.2008.10.001
Keywords
Conjugated polymers; Fluorescence quenching; Metal-polymer complexes; Polyfluoreneethynylene; Sensors
Funding
- National Natural Science Foundation of China (NSFC) [20674095]
- Chinese Academy of Sciences [KGCX2-YW-118]
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A new conjugated polymer based on polyfluoreneethynylene has been synthesized by Sonogashira coupling reaction. Each repeat unit of the polymer contains two carboxylic acid groups which can selectively incorporate with Cu2+ in methanol. The sensitivity was extremely high through an efficient fluorescence quenching process amplified by the polymer aggregation mechanism. Such polymer will be a good candidate of the new fluorescence sensors for Cu2+ with good selectivity and high sensitivity. (C) 2008 Elsevier Ltd. All rights reserved.
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