A new sensor for copper(II) ion based on carboxyl acid groups substituted polyfluoreneethynylene

Autor: Junping Du, Shijie Ren, Qiang Fang, Jing Sun, Hongliang Zhong, Erjian Xu, Danli Zeng, Jian‐Gong Cheng
Rok vydání: 2008
Předmět:
Zdroj: Reactive and Functional Polymers. 68:1715-1721
ISSN: 1381-5148
Popis: 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 Cu 2+ 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 Cu 2+ with good selectivity and high sensitivity.
Databáze: OpenAIRE