Hydrophilic behaviour of gold-poly (o-phenylenediamine) hybrid nanocomposite

Kaushik Mallick, Mike J. Witcomb, Rudolph Erasmus, Mike S. Scurrell

Research output: Contribution to journalArticlepeer-review

30 Citations (Scopus)

Abstract

An in situ synthesis route is described for the preparation of a gold-poly (o-phenylenediamine) nanocomposite material by the interfacial polymerization route. The synthesis was carried out at the organic-aqueous interface. It was found that polymerization of o-phenylenediamine (PDA) using HAuCl4 as an oxidizing agent leads to the formation of poly-PDA with a fiber-like morphology, while the reduction of HAuCl4 results in the formation of well dispersed and stabilized gold nanoparticles within the polymer matrix. The resultant composite material was purely hydrophilic in nature and was deposited in the aqueous fraction of the reaction medium. The metal-polymer was characterized by means of different techniques, such as UV-vis and Raman spectroscopy that provided information about the chemical structure of polymer, whereas electron microscopy images provided information regarding the morphology of the composite material and the distribution of the metal particles in the composite material.

Original languageEnglish
Pages (from-to)166-171
Number of pages6
JournalMaterials Science and Engineering B: Solid-State Materials for Advanced Technology
Volume140
Issue number3
DOIs
Publication statusPublished - 15 Jun 2007
Externally publishedYes

Keywords

  • Gold nanoparticle
  • Interfacial polymerization
  • Metal-polymer composite
  • Raman spectra
  • TEM

ASJC Scopus subject areas

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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