聚对苯二胺纳米线 Poly(p-phenylenediamine) nanofibers.pdfVIP

Synthetic Metals 162 (2012) 1343–1347 Contents lists available at SciVerse ScienceDirect Synthetic Metals j o u rn a l h o me p a ge : w w w. elsev /locate/syn met Poly(p-phenylenediamine) nanofibers having conjugated structures, a novel, simple and highly selective fluorescent probe for l-cysteine Siwei Yang, Fang Liao ∗ Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, School of Chemistry and Chemical Industry, China West Normal University, Nanchong 637002, China a r t i c l e i n f o a b s t r a c t Article history: In this paper, the poly(p-phenylenediamine) (PpPD) nanofibers were synthesized via chemical oxidation Received 9 April 2012 polymerization of p-phenylenediamine (pPD) monomers by (NH ) S O (APS) at room temperature. 4 2 2 8 Received in revised form 11 May 2012 The structure, morphology and properties of the polymer were characterized with IR, UV–vis, Raman Accepted 19 May 2012 spectroscopy, XRD, scanning electron microscope (SEM), and fluorescence spectroscopy. It is spectacular that the PpPD nanofibers show high-efficiency effects of enhancing the fluorescence intensity of l-Cys. Keywords: Therefore, PpPD can be used as a novel, simple and highly selective fluorescent probe to detect l-cysteine. Polymers This measuring method is simple, efficient, pollution-free, low-cost and sensitive. Th