Polymer Grafted Aluminum Nanoparticles for Percolative Composite Films with Enhanced Compatibility
Chenggong Yang,
Chufarov Marian,
Jie Liu,
Qi Di,
Mingze Xu,
Yunhe Zhang,
Wei Han,
Kun Liu
Affiliations
Chenggong Yang
State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, China
Chufarov Marian
Jilin Supercapacitor Engineering Laboratory, College of Physics, Jilin University, Changchun 130012, China
Jie Liu
State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, China
Qi Di
State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, China
Mingze Xu
International Joint Research Center for Nanophotonics and Biophotonics, School of Science, Changchun University of Science and Technology, Changchun 130022, China
Yunhe Zhang
State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, China
Wei Han
Jilin Supercapacitor Engineering Laboratory, College of Physics, Jilin University, Changchun 130012, China
Kun Liu
State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, China
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.
