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Nanomaterials 2016, 6(10), 188; doi:10.3390/nano6100188

Polymer Nanocomposite Film with Metal Rich Surface Prepared by In Situ Single-Step Formation of Palladium Nanoparticles: An Interesting Way to Combine Specific Functional Properties

1
Departments of Chemistry and Applied Science, College of William and Mary, Williamsburg, VA 23187, USA
2
University of Lyon, University Lyon1, IMP (Ingénierie des Matériaux Polymères) UMR CNRS 5223, 69622 Villeurbanne, France
*
Author to whom correspondence should be addressed.
Academic Editor: Mikael S. Hedenqvist
Received: 9 September 2016 / Revised: 28 September 2016 / Accepted: 11 October 2016 / Published: 18 October 2016
(This article belongs to the Special Issue Multifunctional Polymer-Based Nanocomposites)
View Full-Text   |   Download PDF [2243 KB, uploaded 18 October 2016]   |  

Abstract

This paper presents a continuous single-step route that permits preparation of a thermostable polymer/metal nanocomposite film and to combine different functional properties in a unique material. More precisely, palladium nanoparticles are in situ generated in a polyimide matrix thanks to a designed curing cycle which is applied to a polyamic acid/metal precursor solution cast on a glass plate. A metal-rich surface layer which is strongly bonded to the bulk film is formed in addition to homogeneously dispersed metal nanoparticles. This specific morphology leads to obtaining an optically reflective film. The metal nanoparticles act as gas diffusion barriers for helium, oxygen, and carbon dioxide; they induce a tortuosity effect which allows dividing the gas permeation coefficients by a factor near to 2 with respect to the neat polyimide matrix. Moreover, the ability of the in situ synthesized palladium nanoparticles to entrap hydrogen is evidenced. The nanocomposite film properties can be modulated as a function of the location of the film metal-rich surface with respect to the hydrogen feed. The synthesized nanocomposite could represent a major interest for a wide variety of applications, from specific coatings for aerospace or automotive industry, to catalysis applications or sensors. View Full-Text
Keywords: metal nanoparticles; polyimide films; optical properties; gas barrier material; hydrogen trap material metal nanoparticles; polyimide films; optical properties; gas barrier material; hydrogen trap material
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Thompson, D.; Kranbuehl, D.; Espuche, E. Polymer Nanocomposite Film with Metal Rich Surface Prepared by In Situ Single-Step Formation of Palladium Nanoparticles: An Interesting Way to Combine Specific Functional Properties. Nanomaterials 2016, 6, 188.

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