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Open AccessArticle

Polymer Grafted Aluminum Nanoparticles for Percolative Composite Films with Enhanced Compatibility

State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, China
Jilin Supercapacitor Engineering Laboratory, College of Physics, Jilin University, Changchun 130012, China
International Center of Future Science, Jilin University, Changchun 130012, China
International Joint Research Center for Nanophotonics and Biophotonics, School of Science, Changchun University of Science and Technology, Changchun 130022, China
Authors to whom correspondence should be addressed.
Polymers 2019, 11(4), 638;
Received: 4 February 2019 / Revised: 5 March 2019 / Accepted: 11 March 2019 / Published: 8 April 2019
(This article belongs to the Special Issue Nanostructured Polymers and Nanocomposites)
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Aluminum nanoparticles hold promise for highly energetic materials and sustainable surface plasmonic materials. Most of the commercial Al nanoparticles are prepared via a high-throughput electrical explosion of wires method (up to 200 g h−1). However, the use of Al nanoparticles produced by an electrical explosion of wires is limited by their micrometer-sized aggregations and poor stability. Here, we use polystyrene with –COOH end-group to graft onto isolated Al nanoparticles and dramatically enhance their colloidal stability in various organic solvents. We further demonstrate that the polystyrene grafted Al nanoparticles can be doped into polystyrene films with high compatibility, leading to enhanced dielectric properties, such as higher dielectric constant, lower dielectric loss, and stronger breakdown strength. Moreover, the composite film can improve the moisture resistance of embedded Al nanoparticles. View Full-Text
Keywords: aluminum nanoparticles; composite film; dielectric materials; percolative system aluminum nanoparticles; composite film; dielectric materials; percolative system

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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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Yang, C.; Marian, C.; Liu, J.; Di, Q.; Xu, M.; Zhang, Y.; Han, W.; Liu, K. Polymer Grafted Aluminum Nanoparticles for Percolative Composite Films with Enhanced Compatibility. Polymers 2019, 11, 638.

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