Formation of silver nanoparticles created in situ in an amphiphilic block copolymer film

Jung Tae Park, Joo Hwan Koh, Kyung Ju Lee, Jin Ah Seo, Byoung Ryul Min, Jong Hak Kim

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

In this work, silver nanoparticles were synthesized with an amphiphilic diblock copolymer, poly-styrene-block-poly(1-vinyl-2-pyrrolidone) (PS-b-PVP), as a template film. First, microphase-separated amphiphilic PS-b-PVP (70 : 30 wt %) was synthesized through atom transfer radical polymerization. The self-assembled block copolymer film was used to template the growth of silver nano-particles by the introduction of a silver trifluoromethanesulfonate precursor and an ultraviolet irradiation process. The in situ formation of silver nanoparticles with an average size of 4-6 nm within the block copolymer template film was confirmed with transmission electron microscopy, ultraviolet-visible spectroscopy, and wide-angle X-ray scattering. Fourier transform infrared spectroscopy also demonstrated the selective incorporation and in situ formation of silver nanoparticles within the hydrophilic poly(lvinyl-2-pyrrolidone) domains, which were mostly due to the stronger interaction strength of the silver with the carbonyl oxygens of poly(1-vinyl-2-pyrrolidone) in the block copolymer. This work provides a simple route for the in situ synthesis of silver nanoparticles within a polymer film.

Original languageEnglish
Pages (from-to)2352-2357
Number of pages6
JournalJournal of Applied Polymer Science
Volume110
Issue number4
DOIs
Publication statusPublished - 2008 Nov 15

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Surfaces, Coatings and Films
  • Polymers and Plastics
  • Materials Chemistry

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