Polyazulene based materials for heavy metal ions detection

2017 Global Conference on Polymer and Composite Materials

材料科学;化学

Oprisanu, A.^1 ; Ungureanu, E.M.^1 ; Isopescu, R.^1 ; Birzan, L.^2 ; Mihai, M.^1 ; Vasiliu, C.^3

University Politehnica of Bucharest, Gheorghe Polizu 1-7, Bucharest

011061, Romania^1

Institute of Organic Chemistry C. D. Nenitzescu, Romanian Academy, Spl. Independentei 202B, PO Box 15-258, Bucharest

71141, Romania^2

National Institute of Research and Development for Optoelectronics, INOE-2000, 409 Atomistilor Str., Bucharest-Magurele

77125, Romania^3

关键词: Azulene derivatives;    Complexing properties;    Electrochemical characterizations;    Five-membered rings;    Modified electrodes;    Non-linear optical;    Photorefractive properties;    Seven-membered rings;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/213/1/012050/pdf
DOI  :  10.1088/1757-899X/213/1/012050

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Azulene is a special monomer used to functionalize electrodes, due to its spontaneous electron drift from the seven-membered ring to the five-membered ring. The seven-membered ring of the molecule may act as electron acceptor, while the five-membered ring - as electron donor. This leads to very attractive properties for the synthesis of functional advanced materials like: materials with nonlinear optical and photorefractive properties, cathode materials for lithium batteries, or light emitting diodes based on organic materials. Azulene derivatives have been used rarely to the metal ions electroanalysis. Our study concerns the synthesis and electrochemical characterization of a new azulene based monomer 4-(azulen-1-yl)-2,6-bis((E)-2-(thiophen-3-yl)vinyl)pyridine (L). L has been used to obtain modified electrodes by electrochemical polymerization. PolyL films modified electrodes have been characterized by cyclic voltammetry in ferrocene solutions. The complexing properties of polyL based functional materials have been investigated towards heavy metals (Pb, Cd Hg, Cu) by preconcentration - anodic stripping technique in order to analyze the content of these cations from water samples.