In situ formation of metal nanoparticle composites via "soft" plasma electrochemical reduction of metallosupramolecular polymer films

Seung Whan Lee, Justin R. Kumpfer, Pin Ann Lin, Guodong Li, Xuan P A Gao, Stuart J. Rowan, R. Mohan Sankaran

研究成果: Article査読

26 被引用数 (Scopus)

抄録

Metallosupramolecular polymers, consisting of both inorganic and organic phases, offer an interesting platform for the in situ formation of metal nanoparticles embedded in a polymer film. Here, we report the synthesis and characterization of Pt-containing supramolecular polymers, prepared from 4-oxy-2,6-bis(10-methylbenzimidazolyl)pyridine end-capped polymers of either poly(tetrahydrofuran) or poly(ethylene-co-butylene), where the OMeBip:Pt complex phase separates from the macromonomer soft core to yield mechanically robust films. Exposure of these Pt-containing supramolecular polymer films to an atmospheric-pressure plasma setup results in the controlled nucleation and growth of uniformly sized, crystalline, unagglomerated Pt nanoparticles. The mechanism for nanoparticle nucleation is believed to be reduction by plasma electrons, eliminating the need for hydrogen gas or other reactive chemicals and allowing "soft" processing. We show that the size and density of the nanoparticles is modulated by the exposure time, molecular weight of the polymer core, and polarity of the polymer core, thus enabling metal nanoparticle composites to be produced in a single step.

本文言語English
ページ(範囲)8201-8210
ページ数10
ジャーナルMacromolecules
45
20
DOI
出版ステータスPublished - 2012 10 23
外部発表はい

ASJC Scopus subject areas

  • 有機化学
  • 材料化学
  • ポリマーおよびプラスチック
  • 無機化学

フィンガープリント

「In situ formation of metal nanoparticle composites via "soft" plasma electrochemical reduction of metallosupramolecular polymer films」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル