One‐pot preparation of gold–elastomer nanocomposites using PDMS‐graft‐PEO copolymer micelles as nanoreactors

PDMS/gold elastomeric nanocomposites were obtained in a one-pot process based on the use of micelles of a random graft amphiphilic copolymer as reducing nanoreactors for the synthesis of gold nanoparticles within the elastomeric matrix. Optical characteristics of the nanocomposites were very dependent on the composition of the sample, which affected the size and aggregation level of the nanoparticles. Homogeneous dispersions of spherical nanoparticles were obtained for high copolymer/metal solution ratios and low copolymer concentrations. The optical clarity of the materials was retained after polymerization, which is fundamental for optical applications.

[1]  R. Krishnamoorti Strategies for Dispersing Nanoparticles in Polymers , 2007 .

[2]  P. Alexandridis,et al.  Mechanism of gold metal ion reduction, nanoparticle growth and size control in aqueous amphiphilic block copolymer solutions at ambient conditions. , 2005, The journal of physical chemistry. B.

[3]  G. Mills,et al.  Formation of Metal Particles in Aqueous Solutions by Reactions of Metal Complexes with Polymers , 1995 .

[4]  A. Cooper,et al.  Preparation of Acrylate-Stabilized Gold and Silver Hydrosols and Gold−Polymer Composite Films , 2003 .

[5]  M. Sepaniak,et al.  Gold‐polymer nanocomposites: studies of their optical properties and their potential as SERS substrates , 2005 .

[6]  M. Lazzari,et al.  Concentrated reverse micelles in a random graft block copolymer system: structure and in-situ synthesis of silver nanoparticles , 2007 .

[7]  W. Caseri,et al.  Color Switching in Gold—Polysiloxane Elastomeric Nanocomposites , 2006 .

[8]  L. Liz‐Marzán,et al.  Optically active poly(dimethylsiloxane) elastomer films through doping with gold nanoparticles. , 2006, Journal of nanoscience and nanotechnology.

[9]  H. Althues,et al.  Functional inorganic nanofillers for transparent polymers. , 2007, Chemical Society reviews.

[10]  Polycarpos Pissis,et al.  Glass transition and molecular dynamics in poly(dimethylsiloxane)/silica nanocomposites , 2005 .

[11]  H. Mirzadeh,et al.  Modification of polysiloxane polymers for biomedical applications: a review , 2001 .

[12]  Y. Grohens,et al.  Rheological characterization of polydimethylsiloxane/HTiNbO5 nanocomposites prepared by different routes , 2005 .

[13]  Ken-ichi Watanabe,et al.  Self-Organization, Phase Behavior, and Microstructure of Poly(oxyethylene) Poly(dimethylsiloxane) Surfactants in Nonpolar Oil , 2001 .

[14]  Luis M Liz-Marzán,et al.  Tailoring surface plasmons through the morphology and assembly of metal nanoparticles. , 2006, Langmuir : the ACS journal of surfaces and colloids.

[15]  M. Lazzari,et al.  One-step synthesis of gold and silver hydrosols using poly(N-vinyl-2-pyrrolidone) as a reducing agent. , 2006, Langmuir : the ACS journal of surfaces and colloids.

[16]  Anna C. Balazs,et al.  Nanoparticle Polymer Composites: Where Two Small Worlds Meet , 2006, Science.

[17]  Esin Gulari,et al.  Supercritical CO2 dispersion of nano-clays and clay/polymer nanocomposites , 2006 .

[18]  L. Nicolais,et al.  Thermo-chromic materials based on polymer-embedded silver clusters , 2006 .

[19]  C. Rodríguez-Abreu,et al.  Self-assembly: a minimalist route to the fabrication of nanomaterials. , 2006, Journal of nanoscience and nanotechnology.

[20]  M. Sepaniak,et al.  Improving the analytical figures of merit of SERS for the analysis of model environmental pollutants , 2004 .