Photochemically Prepared Gold/Polymer Nanocoatings: Formation of Gold Mirror

CEPER T., ARSU N.

MACROMOLECULAR CHEMISTRY AND PHYSICS, vol.218, no.18, 2017 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 218 Issue: 18
  • Publication Date: 2017
  • Doi Number: 10.1002/macp.201700030
  • Journal Name: MACROMOLECULAR CHEMISTRY AND PHYSICS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Keywords: functional coatings, gold nanoparticles, nanocomposite films, nanogold mirror, photochemical preparation, SILVER-EPOXY NANOCOMPOSITES, FREE-RADICAL POLYMERIZATION, II PHOTOINITIATOR, ELECTRON-TRANSFER, NANOPARTICLES, LIGHT, FABRICATION, ROUTE, NOBLE, FILMS
  • Yıldız Technical University Affiliated: Yes

Abstract

In this study a rapid method is developed to obtain Au nanoparticles(AuNPs)/polymer composite materials by which HAuCl4 salt is reduced and a polymer matrix is simultaneously generated by the means of UV light. 2-Mercaptothioxanthone (TX-SH), thioxanthone (TX), and TX + thiophenol are used as photoinitiator system for the poly(ethylene glycol) methyl ether acrylate and poly(ethylene glycol) diacrylate mixtures in the presence of HAuCl4. Except for a few studies, in situ reduction of Au ions, in an attempt to make them near or at polymer surface, has hardly been investigated at all. As a result of this study, it is important to note that the change of shape of NPs depends on the photoreducing species. TX-SH, due to thiol functionality in its structure, helps the production of the size, shape, and controlled distribution of AuNPs either in polymer matrix or in solution. Prepared AuNPs/polymer nanocoatings exhibit a reflected gold mirror view depending on the irradiation time. In addition to the foregoing approach in obtaining a thin film in the presence of AuNPs, it is expected that they are well ordered near the film surface with controlled shape and narrow range in size distribution.