文献类型：期刊文献

英文题名：Colorimetric Naked-Eye Recognizable Anion Sensors Synthesized via RAFT Polymerization

作者：Jiang, Jianbing;Xiao, Xiao;Zhao, Ping[1];Tian, He

机构：[1]E China Univ Sci & Technol, Key Lab Adv Mat, Shanghai 200237, Peoples R China; E China Univ Sci & Technol, Inst Fine Chem, Shanghai 200237, Peoples R China

年份：2010

卷号：48

期号：7

起止页码：1551

外文期刊名：JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY

收录：;EI(收录号：20101212791769);WOS:【SCI-EXPANDED(收录号:WOS:000275848000010)】；

基金：This work was financially supported by NSFC/China (50673025), National Basic Research 973 Program (2006CB806200), Scientific Committee of Shanghai, and ECUST Funds for Excellent Youth Faculties (YJ0157116).

语种：英文

外文关键词：anion; colorimetric; fluorescence; living radical polymerization (LRP); RAFT polymerization; sensors

摘要：A polymeric sensor (PTH) containing naphthalimide signal moiety and thiourea recognition moiety for the detection of anions was synthesized by reversible addition-fragmentation chain transfer (RAFT) polymerization, which can guarantee controllable molecular weight, narrow molecular weight distribution, and precise polymer structure. Both PTH and its corresponding monomer (TH) showed naked-eye recognizable yellow-to-orange changes upon addition of fluoride (F-), acetate (AcO-), and dihydrogen phosphate (H2PO4-) of low concentration. However, only F- can result in orange-to-purple change when the aforementioned anions were added at high concentrations, which was attributed to the deprotonation of the thiourea N-H groups and the mechanism was supported by the UV-Vis absorption spectra and H-1 NMR titration. The effect of these anions on thin PTH films was also investigated, and the addition of F- led to obvious spectra change. It was found that other halide anions (Cl-, Br-, and I-) could hardly induce any variation of absorption spectra. (C) 2010 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 48:1551-1556,2010