Simultaneous synthesis of silver nanoparticles and poly(2,5- dimethoxyaniline) in poly(styrene sulfonic acid)

Li Ming Huang, Ching Chun Tsai, Ten Chin Wen, A. Gopalan

研究成果: Article同行評審

33 引文 斯高帕斯(Scopus)

摘要

Silver nanoparticles were formed in situ along with poly(2,5- dimethoxyaniline) (PDMA) in an interconnected network matrix (reactor), comprising the electronic conductive polymer, PDMA, and a polyelectrolyte, poly(styrene sulfonic acid) (PSS), through the simultaneous reduction of Ag + ions and polymerization of 2,5-dimethoxyaniline. In situ ultraviolet-visible spectroscopy showed that peaks corresponding to the plasmon resonance of silver nanoparticles at 411 nm and the polaronic transition of PDMA at 438 nm provided evidences for the simultaneous formation of silver nanoparticles and PDMA. Transmission electron microscopy and size distribution analysis revealed the presence of spherical silver nanoparticles with an average diameter of 12 nm in the composite. X-ray photoelectron spectroscopy showed that the amine units in PDMA changed to imine units upon the formation of silver nanoparticles. A comprehensive mechanism for the formation of the PDMA-PSS-Ag nanocomposite is proposed. A 10-fold increase in the conductivity was noticed for the PDMA-PSS-Ag nanocomposite (1 S/cm) in comparison with the PDMA-PSS compos ite (0.1 S/cm).

原文English
頁(從 - 到)3843-3852
頁數10
期刊Journal of Polymer Science, Part A: Polymer Chemistry
44
發行號12
DOIs
出版狀態Published - 2006 6月 15

All Science Journal Classification (ASJC) codes

  • 聚合物和塑料
  • 有機化學
  • 材料化學

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