960010-51-9Relevant academic research and scientific papers
TCNE-decorated triphenylamine-based conjugated polymer: Click synthesis and efficient turn-on fluorescent probing for Hg2+
Shi, Wei,Ma, Fudong,Hui, Yonghai,Mi, Hongyu,Tian, Yong,Lei, Yanli,Xie, Zhengfeng
, p. 1 - 7 (2014)
A type of triphenylamine-based conjugated polymer with cyano-containing chromophore in side chain, poly[(9,9-dioctyl)-2,7-fluorene-co-N-4-(1,1,4,4- tetracyanobuta-1,3-dienyl)-4,4′-triphenylamine] (P3) was successfully synthesized by catalyst-free and efficient click reaction between poly[(9,9-dioctyl)-2,7-fluorene-co-N-4-ethynyl-4,4′-triphenylamine] (P2) and tetracyanoethylene (TCNE). Chemical structures of intermediates and target polymer were verified by FT-IR and 1H NMR analyses. Fluorescence of P3's THF solution was specifically quenched by the introduction of I -, accompanied by the change of its apparent color from pale brown to light yellow. With the introduction of Hg2+, fluorescence of P3/I- complex recovered quickly and even exceeded the initial intensity of pristine P3 (when the concentration of Hg2+ above ～6.65 × 10-5 M). Other common cations brought very slight interference for P3/I- complex's response of Hg2+, and the detection limit of Hg2+ reached ～6.9 nM for such probing system.2013 Elsevier Ltd. All rights reserved.
