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Reactive Hydrogel Networks for the Fabrication of Metal–Polymer Nanocomposites
Author(s) -
Tarnavchyk Ihor,
Voronov Andriy,
Kohut Ananiy,
Nosova Nataliya,
Varvarenko Serhiy,
Samaryk Volodymyr,
Voronov Stanislav
Publication year - 2009
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.200900285
Subject(s) - fabrication , nanocomposite , polymer , materials science , self healing hydrogels , polymer science , nanotechnology , metal , polymer chemistry , composite material , medicine , alternative medicine , pathology , metallurgy
Abstract In this study, highly stable gold and silver nanoparticles evenly distributed within a crosslinked poly(acrylamide)/poly( N ‐(hydroxymethyl)acrylamide) (PAAm‐PHMAAm) network have been fabricated without addition of a reducing agent. Remarkably, the same chemical hydrogel composition has been involved in the successful fabrication of spherical gold and silver nanoparticles within the hydrogel template. The hydrogel network acts simultaneously as an efficient reducing agent and stabilizer. The PAAm–PHMAAm hydrogel network binds metal ions and, following reduction of bound to crosslinked template metal ions, proceeds via oxidation of hydroxymethyl hydrogel fragments. A one‐electron mechanism is proposed for the formation of the silver and gold nanoparticles.